how to set laptop monitor to secondary

I have a dell 9300 (specs in Sig) and I also have a Hyundai LD90+ 19in LCD

I find that the LD90+ gets much better colors in games, but I also like using 2 monitors while gaming so I can have winamp and diagnostic tools running on the other monitor.

How to I set the laptop monitor to be the secondary monitor, It will only let me set it to be the primary or let the LD90+ be the only monitor

I managed to it once but I have no idea how.

Another solution would be if someone can tell me how to pick which monitor my games will run on.

Thanks
TheGreySpectre

How do you have the card connected to the laptop? I don't know what that has for input options.

Also, I stumbled across this bit of software yesterday. I don't know if its crap or if its good, but it might solve your problem.

The card is the laptop version of PCI express, it is an nvidia 6800 GO

I have 1 DVI, 1 VGA and 1svideo output on the back of the laptop

I have seen that software before and it looks pretty cool, but its not exactly what Im looking for, that would be good for if I had other spare laptops or computers around that I want to use a secondary monitors over a network

I just want to be able to set the monitor attatached to my dvi port to be the primary monitor withouth turning off the laptop monitor

i r teh st00pid

For some reason I was thinking you had another rig and wanted to use your laptop screen on that, instead of having the laptop drive the L90D+

Have you tried the "use this device as the primary monitor" option under the settings tab in Display Properties (right-click on desktop)? If that doesn't work, go to Advanced and go to the nVidia options, and play around with the nView display settings. I'm not exactly sure where to go if those two don't work.