After a pack starts i get a white screen and an error message

[SoulSylver]

Launcher Version: 1.0.1.3

Operating System: Windows 8 Release preview build 8400 64bit

Java Version: Version 7 Update 5

Antivirus Program: none ( built in Windows defender )

Description of Problem:

After i choose a pack and download/start it , it opens the mods window with a frozen white screen and after about 5-10 seconds i get an error about bad video card drivers . I had this problem on Minecraft and solved it by reinstalling the drivers and it works perfectly but technic pack now has the same error and i don't know what to do . I reinstalled Java and the video drivers again and even deleted minecraft and technic pack folders and launchers but it still crashes on every mod pack. I have no idea what is going wrong and i don't think it is because i use Windows 8 because all programs work like a charm on it. I even tried compatibility mode and still I get the same error and runing the packs in developement build blocks with a white screen. I really want to play these packs so plz help me

Error Messages:

Error for Yogbox: http://pastebin.com/KmUA01eg

Error Log:

http://pastebin.com/cVKhWq97

[SoulSylver]

I solved it. Apparently Technic pack was ran with the integrated GPU instead of the Nvidia one. I just had to go ti Nvidia controll panel and set it to default. I post this so others can solve this error faster.

[Rico]

I have exactly the same problem, but my video card is not a Nvidia, it's a Mobil Intel 945 familly.

Any body knows this problem with this video card.