Hoster Lockes Up & Radeon 9600 Card

[xxyzz]

For the second time in the last six months Hoster has started crashing for no apparant reason. This happened to me about 6 months ago and I would up formating my drive. Today when i palyed my first song it would lock and i would have to restart the system. A windows error message came on showing that there was some problem with the video card (ATI Radeon 9600 XT 128 Mb). However I have not made any changes to the system and during the last 5 months it has been working fine. The driver has not been updated. The only thing I did today was befor I started Hoster I upgraded Microstudio. I tried playing a disc thru Microstudio and it crashed the system too. Has anyone had any problem like this?