I had this same type of problem several months ago. I posted a question on it and didn't get any help but I finally found the problem and posted it somewhere on here.

I will try to find it.

Quest

I just can't seem to find the post that included what I did to get rid of it however I now remember it had to do with the multiblock hack and a php echo being in the code twice.

What version of XOOPS are you running? Have you made any hacks recently just before you noticed this mysterious "f". (mine was a 1, btw) ?

Did you add any new module(s) just before this started happening? If so-try deactivating them one at a time and check to see if the "f" still shows.

If that doesn't do it then I would download a fresh version of the XOOPS from a different location than I got it from the first time and re-upload the modules/SYSTEM folder overiding the one that is there and check to see if that solves the problem.

The reason I suggest the Systerm folder is because it apprears the "f" is showing up in all of the system functions. It is in your Register Here too.

"Always backup your site and database first"

HTHs
Quest

Thanks for the suggestions! I had been editing some of the language files recently. After scanning the language folder I found the following at the top of the user.php file:

f
Removing the "f" solved the problem. I must have inadvertantly typed the "f" during a recent edit. Dumb mistake.

Thanks very much for your help!

Dumb mistakes are those you make while knowing you shouldn't do it in the first place. Otherwise-"to error is human".

U R welcome and glad to see you got it solved.

Quest