Oh crap.
The notebook was 100% reliable.
however, last night, after playing for several hours without a hitch - something goes very wrong. Not sure what changed, but now the notebook locks-up in WoW very badly. Even in the sign-in screen, you can tell something's not right. There's random noise/flicker in the sign-in screen, and it's much worse in-game. In-game play-time is 20 seconds or less before serious system lock-up.
Why would something like this just, -BING-, happen? Nothing was installed or changed.
Virus?
Component burnout?
Other suggestions?
And yes, it's an ATI video card in the notebook.
-Clay