Moodiness

when I install the program on my pc, I get an error, says: Second Life unable run, bcs, your video card drivers did no install properly, are out of date, or are for unsupported hardware, Pls make sure you have the lasted video card drivers and even if u do have the lasted, try reinstalling them. My drivers are installed correctly, however the check, and i can not even start the program. some solution? Thanks