I recently installed a new graphics card in my digital audio G4. When I start up the computer it starts up normally until after the grey screen with the apple and spinning square and goes to a blue screen with the mouse pointer and the mouse pointer moves when I move the mouse. When I start up in safe mode by holding down shift at startup, everything starts up correctly and works fine, but noteverything is running b/c the extensions are not running. I have a feeling this is just a problem with the drivers or something simple like that at startup that is hanging the system. If anyone has run into this problem before and knows how to fix it, any feedback would be greatly appreciated.