adware showing up

["Bev Williams" <bevwilliams () inet4u com>]

I just had a call from an employee that said he has adware showing up on his
print window in the office programs like excel and word.

I went back there to check and, sure enough, there were ads for Norton
firewall, EasyCD, etc. on the window where you click "OK" to print.

Anyone heard of this or have any idea how to get rid of it?  AdAware didn't
find the "malware."