I have a Dell Dimension 4600 desktop, a couple years old. I recently purchased a Hanns-G 19-inch LCD flat panel monitor. A couple weeks ago it started blinking on and off when I first wake up the system. The monitor keeps doing this for about 10 minutes, or until it warms up I guess. Then, once it warms up, it tends to blink on and off whenever the CPU is cranking on something. Is this problem something a video drive download might help? Thanks for your help.