Hl2 Resolution Problem Need Immediate Help!!!

[Lainer]

I accidentally set my resolution much to high for HL2/Insurgency and now when I start up the game my screen just goes black and says not supported...is there a way I can reset the resolution for the game without having to actually have the game running?

Also I have uninstalled and reinstalled twice with no luck...

 

[Mictlantecuhtli]

You can add -width and -height to the application parameters, like hl2 -width 1024 -height 768.

 

[fimbles]

Think if you go program files/ valve/ steam and delete config this will also work. good luck