Kathleen,
As Leslie says, you should be able to select "Print to default printer" at any point in AC in any window. This is regardless of whether you are using XP, 2000, 98 or Vista. It is completely within AC. The reason I am confused is in most windows it is fairly evident that there are two buttons to choose from. For example, in the lab window, you should see on the far right:
Save (without printing)
Print Preview
Print to Default Printer
If you choose the latter, it will print to whichever print driver you have selected as your default print driver on XP which has nothing to do with AC. Anything you print will print to that printer unless you change the print driver say in Word or whatever application.
Choosing Print Preview will show the lab document with a printer icon at the top left. Clicking on that will bring up the standard WINDOWS window for your printer where you can choose whatever print driver you want.
There should be nothing wrong with your setup. In fact, I doubt I could find a way to set it up so I couldn't print as Leslie suggests. If you continue to have problems, I would be happy to remote in to your computer and take a look.
Hope this helps.
