Windows 7: Win 7, Radeon 4850x2, 32" TV/Monitor, Boom

OK, I could live with the fact that due to an issue with Win 7 Ultimate x64 (Full Retail Copy via my TechNet Subscription) that I couldn't use the HDMI connection (my 32 inch LCD/TV is 720p and Windows evidently assumes if you're using HDMI you HAVE to use 1080p). So I hooked up via the VGA adapter, and other than missing my boot messages (monitor only supports resolutions with a 768H such as 1360x768), everything seems to go alright. I did a fresh install of the latest Catalyst and drivers (NOT the ones from Windows Update), and Crossfire and everything else seem to be working.

However, if I turn off the TV/Monitor, then both cards spin their fans up to maximum, and the computer becomes unresponsive. If I turn the TV back on I just see an orange "grid". I have to force the computer to turn off, and then start back up.

Now, leaving the TV on all the time isn't the worst thing in the world, and I don't have a problem if I switch to actually using the TV input or the Composite input (PS3), but turning it off from time to time to save energy would be nice.

Any ideas?