Portal 2 not launching
Since the update however long ago that 'converted to a more efficient format' portal 2 has yet to launch. It shows in task manager for a moment then vanishes into the night.
I have followed the troubleshooting to the best of my ability, checked my drivers, DirectX, all that stuff; nothing. Reinstalled once, nothing. When I go to 'check integrity of game cache' it finds around 7.5mb missing (1 file not found), downloads it, "installs" for a minute, and then refuses to launch exactly the same. Repeating 'verify cache' repeats this sequence again.
Not having problems with HL2, which I belive rules out the registry issue, but I only barely know what I am talking about so maybe not.
Anyone know what's going on?