Printing a web page on IE7 using Windows Vista

For some reason I have not been able to print on IE7 on my Windows Vista machine. I have a Xerox multi-function printer on the network. Both of my Vista machines can not print through IE7 but I can print through MS Word and Adobe Acrobat.
Can someone please help it is sort of annoying that I can’t print through IE7 on a Vista machine?

Thanks,