Can't edit posts?

[nutcrackr]

I've had this for a while on this site only, all other sites that use vbulletin with the in-post edit work fine.

As soon as I hit edit the white box pops up with my text and I can change it, however no buttons work so I'm stuck. If I press save and wait it does nothing, doesn't even look like it is doing anything.

I'm using firefox 1.5.0.1 and I've tried switching off some extensions like adblock but I still can't edit anything. I can edit fine in IE however. Any ideas?

 

[ríomhaire]

Edit:
Sorry, I'm an idiot, I just read the thread title and posted. Listen to Badger anyway.

 

[ComradeBadger]

Check that adblock isn't blocking parts of the script

 

[nutcrackr]

I removed adblock and every other extension just to check, same deal. I checked adblock and it doesn't seem to be blocking any script, especially since it doesn't work when removed completely. I guess it's my firefox install or something but it's odd that only this site has the problem. Cheers for the help.