on my homepage I get:

Notice [PHP]: Only variables should be assigned by reference in file include/common.php line 223
Notice [PHP]: Only variables should be assigned by reference in file kernel/object.php line 819
Notice [PHP]: Only variables should be assigned by reference in file kernel/object.php line 819
Notice [PHP]: Only variables should be assigned by reference in file kernel/object.php line 819
Notice [PHP]: Only variables should be assigned by reference in file kernel/blockinstance.php line 169
Notice [PHP]: Only variables should be assigned by reference in file kernel/block.php line 179
Notice [PHP]: Only variables should be assigned by reference in file kernel/object.php line 350
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 321
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 112
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 340
Notice [PHP]: Only variables should be assigned by reference in file kernel/block.php line 228
Notice [PHP]: Only variables should be assigned by reference in file kernel/object.php line 350
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 321
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 340
Notice [PHP]: Only variables should be assigned by reference in file kernel/block.php line 228
Notice [PHP]: Only variables should be assigned by reference in file kernel/object.php line 350
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 321
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 119
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 340
Notice [PHP]: Only variables should be assigned by reference in file kernel/block.php line 228


but i dont know what it means

They means that Santa Claus is comming to town with presents to all nice folks......*just joking*

Disregard all php notice ...they don't have any influence on your site...

Grizzly

but other people see them too so it does not look good

Hi again Super...

Go to admin section ...choose prefernces ---> choose system ---> choose ...*hmmmm* can't remeber what it is in english...well...it's the first point in system....scroll down turn off php debug..and they should vanish...

Grizzly