Hello, I can't get a signal from my laptop on my Mitsubishi XC3730 37" monitor VGA input. I've tried all of the switching on the laptop I can find (Windows, ATI Catalyst, the fn+F5 key) but nothing even produces as much as a flicker on the monitor. The monitor does work - I use it now with an HD tv tuner, and have used it with several other HD tuners, as well as an IBM T23 laptop. I even tried the laptop with another monitor and it works with it Any ideas?