hello - i recently bought a macbook and a 22" samsung lcd. i'm having problems getting the image to display consistently on the monitor. i am able to get the image on the monitor, but after about 30 seconds it starts to cycle from analog to digital. this happens regardless of whether or not i have the macbook display on or off. maybe it's a resolution setting?

sorry if this is posted in the wrong thread - sounds like a hardware issue to me, but i'm really just not sure.

thanks for any help!