Hi ! I have Autocas LT 2005. I have a problem with my HP DesignJet 500. I installed the driver. I can print all the day. When turn off my computer and turn it on after, the printer says "ready", all seems ok, but when I print it prints nothing. I tryed other drivers. The same. I tryed to install the driver on the Autocad install CD, but this one ask me for the directory to find "Acad.exe", and Autocad LT 2005 has got no "Acad.exe" ! Please tell me something to do. Regards.