MBP freeze DVI out to a monitor

When I first got my 13inch 2010 MacBook Pro about two months ago, I connected it with an external monitor via MiniDisplayport to DVI cable. And since then I had experienced random freeze, the screen would suddenly turn to light green or some other color, keyboard and everything else stopped working, and I had no choice but to reboot. However in the last 10 days I removed the connection to the external monitor and so far I have not experienced any problem. I think I have isolated the freeze issue. Does anyone know what's going on here?? Is it possible for me to reestablish the connection without experiencing any crash in the future? thx

I have the same problem. When no external monitor/TV is used, no issues ever. When using HDMI-DVI and using HDMI as sound output, freezes every 15-45 mins. When using just video, no audio, freezes every 30-90 mins.
When I called apple support, they said no known issues. I ran the low level Apple hardware diagnostics (ASD 3S138) OS and EFI, and my mac passed every single test. (DVI port is not listed on the diagnostic)
Everything is up to date, and my MBP is was purchased in August (3 months old).
My buddy has a MBP 13" from a year ago, before they added the capability to output sound through DVI-HDMI, and he has never had an issue.
This seems to be a hardware issue, and only seems to be happening on the 13" MBP with the new DVI out that allows sound that was released mid 2010.

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