Photoshop: Has anyone else tried using it with an Extended desktop in Windows XP?

I happen to have my laptop setup right now with another monitor for an extended desktop while I'm coding. So, I figured I'd try and see if Photoshop gives me any problems. The answer is: nope. It works fine, everything draws OK, with the main window or tools on either screen. For reference, I'm using Photoshop 7, and the video card in this laptop is a 16mb ATI Mobility Radeon (I have a Dell Latitude C610) with driver version 6.13.10.3293.

As for the different background picture on each display, I don't know, but if you find out I'd be interested in the answer.

Oh, and I'm running Windows XP Professional SP1.