I have an Acer Aspire 6530 running Windows Vista and today it started shutting off at random. When it shuts off the bottom 2/3 of the screen has blue stripes across it, and on the blue is text I cannot read. The rest of the screen is black. Then it turns off completely. When the PC is turned on again windows detects that the PC shut down unexpectedly and sends an error report. Is this a problem with my PC or with Windows Vista?

Video adapter - when I go to Sound, video and game controllers there are only audio devices "ATI HDMI Audio" and "Realtek High Definition Audio".

Nowhere else in the list is there anything close to a video driver - could it be under a different name?

My computer is often hot, this is nothing new, I've tried everything suggested for a PC running hot and nothing has worked.

No it doesn't happen at the same time.

I have the PC in safe mode and all is well so far.

Thanks for your prompt response. Video adapter - when I go to Sound, video and game controllers there are only audio devices "ATI HDMI Audio" and "Realtek High Definition Audio". Nowhere else in the list is there anything close to a video driver - could it be under a different name? My computer is often hot, this is nothing new, I've tried everything suggested for a PC running hot and nothing has worked. No it doesn't happen at the same time. I have the PC in safe mode and all is well so far. Thanks for your prompt response.