AVG anti-virus found this trojen in the screensaver http://www.sunnygames.com/download/Bugix/Sands_of_Time_Screensaver.exe

it could be a false positive. AVG gets those sometimes.. AVG once thought my code had a virus, after a couple of compiles it was fine again.. But I don't use AVG anymore.

That said screensavers often can harbour some very very nasty code...

I once downloaded a matrix screensaver, that happened to actually be on opengl.org I think (it was really quite cool, all 3d and such).. when one day, I believe the 22nd of september, my virus scanner (norton at the time) popped up saying that a program "22_9.exe" (or something similar) was trying to erase my master boot records, and do various other bad things. Needless to say I did a virus scan, but nothing showed up... until a few minutes after the scan when it came up again. And again 15 minutes later... It was at this point I guessed it was the screensaver and forced it to run, and bang, same deal.
Looked through the code in notepad and sure enough there was reference to 22_9.exe or such.

never downloaded a screensaver since.

I now use nod32 AV and it finds virus's on my flatmates pcs that their AVs don't.. :)

yeah.