What would cause this /forum//showthread.php?

[Powlo]

All of a sudden some links on my site have failed to work, not all of them just some.

I was writing a post at the time then all of a sudden the site went tits up and ive now noticed the double slash in some of the urls /forum//showthread.php? These urls deffinatly used to work and i wasnt doing anything to provoke this.

Any ideas?

[Lynne]

Probably someone changed some option that set the path and added a / at the end when they shouldn't have.

[Powlo]

well theres only me that has access, some strange things are happening at the moment and im starting to think i have been hacked.

--------------- Added 1240181519 at 1240181519 ---------------

Confirmed, i have been hacked. The whole site diverts to some german site. Looking at phpmyadmin i can see that some urls have been changed. how can i close the forum or better still, how can i change the style i was using via phpmyadmin?