We're using LDD4 on XP pro and having problems with LDD locking up when we print raster images to our 1055cm plotter. The plotter is on out network and we are using the PC3 files. We didn't have any problems on LDD 3, just now on LDD4. It seems we can print 2-3 sheets, then bang, it locks up, no error or anything. Any help would be appreciated.