Laptop screen is very dark

The screen on my IBM (made before Lenovo) X41 laptop is really dark when I start it up, and you can see a very faint image of the desktop on the screen. There isn't anything wrong with the backlight, because if I wait about 10-12 minutes after startup, the backlight will come on. My computer's hard drive recently had to be wiped completely because of a virus that I could not get rid of by any other means.
Is there a driver that I could install to fix this, or does something else need to be repaired?