Network Printing

I have an Xp network at work. in one room we have a couple of printers on the network that are shared between multiple computers. Until recently all worked well - then one day I went in and the workstation no longer would print to the Hp laserjet - it prints to other printers, but when I try to print to the laserjet it say drivers not installed and I have installed and reinstalled and still no luck, I have talked to microsoft no help AM I SURPRISED? any ideas anyone?!