All blank pages after upgrade

[Darakir]

I upgraded from 3.7x to 3.8 (latest) in my test forum just now.
I have transferred the files, and after running the upgrade script, I get to log in, and the I just see a blank page.
No error message, nothing.

I can't change anything in the admin cp, because I can't see it. I just see a blank page.

I tried to upload the tools.php, and reset a few things, but nothing makes any difference. I checked under "blank pages" in the troubleshooting section of the manual, but they assume it is just a few pages that is blank, I can't do anything they suggest.

[borbole]

Have a look here:

http://www.vbulletin.com/docs/html/main/blank_pages

[Darakir]

1. You did not upload the vB files correctly.

*Yes I have

Admin CP -> Maintenance -> Diagnostics -> Suspect File Versions

*can't reach this

2. You have extra space or lines in your config.php file. Make sure there is no whitespace or extra lines in config.php either before the <?php or after the ?>. [Note: Beginning with 3.6.3 the trailing ?> was removed.]

*Practically copied the one from the live forum, just changed the database name, so this is not it.

3. If this is happening on the forum home page only, then you may have an empty index.html or index.htm file in that directory. Delete it.

*no

4. You have a bad plugin installed. To disable the plugin system, edit config.php and add this line right under <?php

*disabled plugins before the upgrade

5. The servername setting in config.php is wrong. Doublecheck this setting. 99% of the time, 'localhost' is correct:

*checked and double checked

6. Your PHP has magic_quotes_sybase turned on. You have to turn this off. On *nix systems you can do this by creating an .htaccess file with this content and placing it in your main forum directory:

*no

7. [For multiple white pages] You have added code to your header, headinclude or phpinclude templates that is no longer functional.

*no

8. You have a corrupted template. Repairing the template table may help:

*no

9. You have GZIP enabled. Try turning GZIP off here:

*no

10. Sometimes this can also be caused when PHP has the 'display_errors' function turned off.

*no

11. Check your phpinfo page to see if suhosin is installed as a module.

*no

12. This can be caused by a bug in PHP 5.2.5:

*no

13. This can also be caused by a memory_limit setting in php.ini that causes the server to time out before displaying the page.

*no

14. If the script producing this problem is showgroups.php, then you may have too many usergroups for this.

*no

15. Check the file and directory permissions. Although this can differ by server, in general the directories should be chmod'd to 755 (-rwxr-xr-x) and files to 644 (-rw-r--r--). If any are set to 777 (-rwxrwxrwx) then this could result in blank pages.

this is not it either.

I have alive forum that works on the same server, so it is not a server setting, it is something in the test forum.

[Darakir]

Ok, it was the first one after all...