When I start up Portal, i get to the beginning screen and it says "loading" and then my computer restarts
When I start up TF2, I can get past the menu, to the servers list and pick a server. When the server gets loaded, my computer restarts.
Half Life 2 works fine, and I haven't installed episode 1 and 2 yet
I meet all the minimum requirements, and I'm running this off CD.
Have tried reinstalling, and advice i found at the Steam forums (changing startup options from shortcuts & updating video drivers) and some other wierd forum (changing video driver to an older version).
Need help plz.. really wanna play with you guys...
Oh, knifeheavy thinks its cause i have and integrated graphics card, but I run all my other games fine...(and Half life)