Since the original topic broke when I posted a reply to it, I'll try again here:

A new installation of XOOPS we're attempting has the same problem as was originally reported in the other thread: Attempting to run the installer never progresses beyond the display of the initial language selection screen.

Versions involved (all running under Win2K Server, patched current) are:

Apache 2.0.49
MySQL 4.0.18
Xoops 2.0.7
PHP 5.0.2

The Apache error log reports a series of errors, all appear to be based on this first one:

"PHP Notice: Use of undefined constant XOOPS_ROOT_PATH - assumed 'XOOPS_ROOT_PATH' in D:\\Program Files\\Apache Group\\Apache2\\htdocs\\header.php on line 28"

Does this provide any useful info to any devs that might help resolve this problem?

for one XOOPS isnt certified PHP5 compatible yet... use php 4 series the latest i think is 4.3.9, i had same issue but im using Server 2003 with IIS6.0 so i went back to php 4.3.9 and updated to MySQL 4.1.17 as it is GP released officially and all was well

Thanks, Chris. 4.3.9 php did the trick.

NP glad to help!