second monitor help please

Hope this is the right place to ask for help with this...I use a laptop for adjusting images, well it isn't the best so I bought a flat screen. Jpegs will open on the second monitor but anything in photoshop only opens on my laptop. Do I need a software program to get my 2ed monitor to display photoshop work. They are both dells and dell can't seem to help?????
thanks Bill

Are you using winXP?

What version of photoshop?

You should be able to drage th main window of PS over to the other screen...

One thing you might want to check is to make sure that PS is not in Maximized mode. if it is, you won't be able to move it.

I just installed a second monitor here (both are Dell crt's).
First, make sure your video card supports 2 monitors.
Assuming it does, you have to set the display option to "extended", which makes both monitors like one big desktop. That will alow you to drag windows and images from PShop over to the second monitor. If your display is set to "clone", you'll get the same thing displayed on both monitors, like having two desktops. In my case, I'm using extended mode and I have PShop and Paint Shop Pro both set up with all the palettes open on the second monitor.

If you want to use your new external LCD as the main monitor you need to set your new LCD as the primary display before your OS and programs (Photoshop) will load into it by default.

After doing this, I remembered having to fiddle around with screen resolution and display settings a few times before I got them just right.