XNA using wrong monitor

Hi,
I am currently working on a 2D Game and my workstation has 2 monitors. The primary monitor is selected and it is a standard 19" CRT monitor, the secondary is a 21" widescreen LCD. Whenever I run my app in fullscreen mode 800*600 pixel resolution it goes to the 2nd monitor not the primary.

Has anybody got any ideas on why this is occuring?

Thanks,
Jono.

Hi,
The problem was NVDIA control panel had my widescreen monitor set too primary while windows had it as a secondary display device.

I simply shutdown my machine and restarted it with only my CRT monitor connected then made sure both windows and NVDIA control panel had it listed as primary. Then I shutdown and reconnected my widescreen display and then ensured it was listed as secondary in NVDIA control panel and windows upon startup.

Thanks,
Jonathan.