I have searched these forums for similar threads but I think my issue is not really like any of those already put forward.
I have an Aspire 1694wlmi with a 2GHz Pentium M, a Mobility Radeon x700 (256mb) and 1GB of ram. I run Win XP with SP3. I didn't do anything to the comp apart from removing its crappy built-in wlan adapter.
The issue is this: whenever I play any game (even as undemanding as UT99) the laptop just shuts down without warning. This even happens playing 8ballclub's billiards sim in window mode for instance.
The whole thing started happening occasionally a long time ago (with Rome Total War at first). Right now, it happens always and very very soon after starting the game (i.e. less than a minute).
I have noticed that the CPU usage jumps to 100% as soon as I launch the game and stays there until shutdown (but this is supposed to be normal, yes?). Also, I tried stopping all non-essential processes (of which there weren't that many to begin with) and the CPU usage is around 0-4% when idle.
I have also opened the lid and look for dust - none there (neither around the processor nor around the graphics adapter)
I tried updating the ATI drivers, but since the Radeon is included in all Acers, it won't let you update the drivers - and Acer doesn't provide updates either. I have installed the Catalyst Control Center...
People have associated such problems with viruses. I use Avast which finds no viruses (I'm installing Kaspersky next).
I really have no idea what this could be and I'm getting really frustrated. Sorry for the lenghty post, I wanted to provide as much info as possible.
Any help would be immensely appreciated!