This is really strange. I decided to install that last release version, after getting the 'warning' errors on the includes.

Same thing!

So I've gone back to 6.0 br1, and that works!

If I take the config.inc.php, main.inc.php and theme.inc.php from the working install, and copy them into the latest version, I still get the include errors....

Does ANYONE have any idea on this?

Running Windows 2000 server, IIS5, PHP4.2.3, private intranet site, permissions correct.