Please help me fix my computer, Blinking cursor and slow start up after video card driver/software install?

After an install of a new video card and it's CD driver/software, my computer has a blinking cursor and ten minute start up. I can't find a fix for this anywhere. Please help. I have removed the new card and replaced the old card. do I have a chipset problem, BiOS seems fine.|||bring around then and i will have alook