Turn off auto detect displays

[GregD]

Hi,

Im running Tiger with dual monitor... 1 iMac screen and the other to my TV. What is annoying is whenever I change TV channel the iMac will go back to 1 screen and fade in/out as if it has realised there is no longer a second display.

Is there a way to turn off the auto detection and keep it to 2 monitors always?

Thanks

 

[Transeau]

I'm bumping this because I want my Mac Pro to stop this too.

I use a DVI KVM that reports 1280x1024 instead of the native for the screen. I would like to just set it to 1920x1200 and leave it.