You wouldn't happen to be running Vista on this new system? If so unplug the printer, down load this file
http://tiny.cc/BYM4Z , extract it and run the DellCleanUpUtility. This will remove the drivers for the printer. Then download
http://tiny.cc/p74Ei , this is the driver for Vista. The instructions for installing it are on the page. Then get the Vista version of the 3 in 1 software
http://tiny.cc/YF6Qx . Hope this helps, my guess is the drivers on the CD are for XP.
Jimmy