OS X locks up when Benq PE7700 projector is connected

[Holiday]

I used this forum to get my to get my OSX86 machine running. Everything works fine when hooked up to a normal monitor (I've tried several different ones), however when I hook it up to my projector, I'm having boot issues or if already booted OS X freezes when projector is connected.

Projector is connected via HDMI cable (HDMI connection on projector - DVI to HDMI converter plugged it to video card).

I also run Win7 - no issues at all with projector on Win7.

It appears not to output any video signal when I boot with projector as the monitor.

If I boot with a regular monitor and then try to plug in the project the machine completely freezes

My MacBook Pro has no issues with the projector - definitely specific to the OS X installation on this machine

 

Any known issues with projectors?

Any ideas?

[Mikka!]

Same problem here. I also try to connect PE7700 via HDMI to DVI, with identical symptoms.

 

When I connect the projector to the second DVI port, everything locks up, mouse included. The system seems to work though, since I could remotely see that files that started downloading before the lockup continued to download.

 

When I disconnect the main monitor and connect the projector to the same DVI port, there's no signal on the projector and I cannot go back to the monitor -- the system stops responding.

 

I have two monitors, no problems with a dual monitor setup.

 

The problem occurs every time with nVidia 8800GT and 9800GT. I never had these problems with 8400GS or my macbook.

 

Help!

 

Edit: Seems to be the same problem as described in another thread: http://www.insanelymac.com/forum/index.php?showtopic=234644