hl2.ex has stopped working
 

i can play garry's mod, HL2, etc but not TF2...it just loads to the main menu and than crashes to desktop.



PLEASE HELP!

Have you tried reinstalling it?

i just did that:( i also disabled UAC, updated video drivers, rebooted rig, tried http://forums.insmod.net/index.php?s...ded&pid=215419 but it when i do it it doesn't say LOCAL NT AUTHORITY/SERVICE and thus does nothing.