Error when logging out

[محروم.كوم]

When I log out of vBulletin I get the following error.



This only occurs in Fire Fox.

When I log out in Explorer* I am left with a blank page and no error message.

IE: 6.0.2999

FireFox: 3.5
vBulletin: 3.8.2

No recent changes to server or settings. It just started happening.


Any ideas what might be causing this? Otherwise everything seems to be working ok.

Thanks

Attached Images ContentEncodingError.jpg‎ (16.5 KB) __DEFINE_LIKE_SHARE__