Have you checked your site error_logs? This is beginning to sound like a server issue.

Hi Lynne

No i have not tried them yet, where do i find them? admin cp?

And thanks for your help so far im sure we will suss it out, you may be right, it could be a server problem.

The logs are usually located on your server in the folder "/home/yoursitename/logs" You cannot get to them via your admincp.

Ok i had a look at the log and had a few errors there from 2 weeks ago, i think that was when i was updating one of my mods, this problem only started 2 days ago, but im a bit puzzled as i did'nt do anything.

have you done as suggested and reuploaded all of the none image files?

Yes i have uplaoded and overwriten all the files i have now unistalled all the mods that were showing up in the Diagnostics -> Suspect File Versions options and i am now getting this error

Forbidden
You don't have permission to access /register.php on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

--------------------------------------------

CHMOD Prob? what should that be set to?

Check the permissions on the register.php file. Mine is 644.

Mine is 644 too

It's working for me. Perhaps you need to clear your cache.

Yes its working now, support gave me this thread

http://www.vbulletin.com/forum/showthread.php?t=197290

I shall be contacting my host to give them a few choice words

Thanks very much for all your help