Blank page after submitting...

I've just installed vBSEO 2.4.0 with vBulletin Version 3.5.4. Things are working fairly smoothly out of the box except for getting stuck at a blank page after submitting a new reply or deleting a reply (I'll assume posting a new thread - haven't tested that yet).

Could a vBSEO setting be causing this behavior?

PM Sent.

Got an iis client with exactly the same issue.

I had a similar problem this evening.

I posted an article and after submitting it said "Page not found." Thinking it was a problem with redirects, I turned off vBSEO and got the same problem.

I logged out and back in again. I posted a short article and it worked.

I cut and pasted the other article and it bombed again.

I went through it bit by bit (added an article with the first paragraph, saved it, second paragraph.. and so on.) For some reason, there was something (I have NO idea what) in the third paragraph that made it burp.

I stopped at the second paragraph. Saved it. Called it a day.