Purchased a HP Designjest T770 plotter. Installed it using the factory CD but a few days later the plotter was moved to our server and given an IP address. I removed the plotter loaded with the CD and installed the network plotter. I am running AutoCAD 2010 LT and now when I select the new plotter the plot window is very slow to open. I have tried this plotter with other software and have no problems, any suggestions?