Can't post or preview in VBulletin 5 - Error Messages

[dawsource]

I'm in the testing phase of a new forum running VB5 (5.0.4). Whenever I try to make any test posts I can't preview or post.

Error Message when trying to preview: Error Loading Preview
Error Message when trying to post: Empty Response

Any ideas?

Adam

[Zachery]

Try clearing your system cache.

Also, what is the MySQL max_packet_size

[dawsource]

Set the new size for 100mb, cleared the cache, and restarted apache. Same thing happens...

[snakes1100]

whats your php memory_limit set to, you can try upping it, then restarting apache.

[dawsource]

256M

[snakes1100]

When you say empty, do you mean a white page?

[Lynne]

If you open the page in firefox with firebug installed, turn on firebug > console and try to post. See if anything shows up there.