On my computer, not the one I am currently on, I was trying to download the newest driver software for my Video Card. I have a Nvidia Geforce GTX 260 and was told to delete my current driver software that was on my computer first before I downloaded it because they can interfere with one another.. Well I did so and now it is very clear that my computer is no longer running a graphics card and when I go to download the new software, It tells me that it cannot read my hardware. How can I fix this? Help me please!