At work we set some PC CRT signals to off in the bios. I doubt this is your problem but its easy to check. Enter your bios, go to micellaneous (or extras or whatever- hunt for it as different bios settings are located different places or not available). If you find a video/crt signal setting, make sure its on. (to enter your bios with crt signal off alternate between hitting delete and f2 during boot up- hopefully one of those is the correct key. The other thing you can do is use a volt meter to see if you have 3.3 volts on pin 12. (at least thats what i just measured on mine)
PS. after re-reading the thread, my post doesnt seem to be of any help to you, but ill leave it.