Okay a few observations – When I run it in 2d I just launch LaunchGTAIV.exe w/o steam runnning. if try to run gtaiv exe it throws an error . I did a direct vorpx shortcut to GTAIV.exe and then got this
Also when I get a black window if I alt tab it and then try to click on it it gives the same error message as above. What version of the game was the default profile tested on?