i just installed a diamond radeon HD 2400pro on my computer, however i didnt realise that i didnt disable my on-board video... now when i plug my monitor into my on-board video, the monitor doesnt turn on, the light just remains orange. when i plug the monitor into my new video card the computer work fine. though whenever i start playing WoW after i killed something or loot the screen will go blue and say stuff about incorrect installation and stuff. Also when i turn on my computer when its connected to my new video card, while everything is loading up (like msn and anti-virus) i get two popups, one saying that a new hardware has been found and that is should download it, and the other says ".NET Framework error. C:\WINDOWS\Microsoft.NET\framework\v2.0.5072\mscorwks.dll could not be loaded."

what do i do???

my suggestion would be to disable the onboard video in the BIOS, and then install the drivers for the video card.