I have been experiencing this problem for the past week.
When I turn on the console, got sound but no signal on my monitor( acer 1917, using ori vga cable).
After few tries,..the signal is on, picture appears but color distorted a bit, after few minutes, color is normal and will be normal for the rest of the 3-5 hours until i shut down. Next day.... same problem.
There no red light appearing. Games play fine.

not sure it's monitor problem, cable or worse...console problem.

I havent tested with another monitor yet but has anyone experienced this before?

I have this problem before when playing my 360 with my almost 4 years old CRT monitor. The monitor's VGA cable has spoiled, causing the color displayed to be distorted. Since the cable on my CRT monitor can't be replaced, I switched to widescreen LCD and no longer face the problem.

My advice:

1) Try your 360 on other monitor, if it works fine, then something is wrong with your monitor.
2) If the problem still exist when tested on other monitor, try borrowing and change the 360's VGA / Component cable you're using. If the problem still exist, then the problem probably come from your console.

thanks for your advice, I was thinking along the same lines as well. last nite - no problem....... If the problem gets worse will probably take it to the shop and test.

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Added on April 28, 2007, 12:26 amtested on another monitor same problem,.....now to test using diffrent cable. Not looking good for me. Right now no picture at all only sound, no red light.

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Added on April 30, 2007, 5:05 pmUpdate:
Could not get hands on diffrent VGA cable but tested on TV with HD cable, same problem. It must be console
Console still works, but have to like " warm it up" before picture appears but the color will keep switching beetween normal and distorted.
Am trying to get access to Xbox support in SG. Can't seem to call the number from here, so a friend gonna do it for me.

Any advise on how to resolve my situation is welcome.

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Added on May 11, 2007, 8:44 amManaged to get in touch with Support in SG. They told me to try some additional stuff like reset display resolution and starting up the console without the HD. If dont work then probably have to exchange.

mods - I guess you can close this thread.

cheers.

This post has been edited by manutd10: May 11 2007, 08:44 AM