Working on a Dell Dimension 2400 (P4) with 2 printers - #1 is working fine from the LPT1 port; #2 is an HP 3820 color inkjet hooked to a USB port. It worked fine in the past, but something has recently caused a problem. I've uninstalled & re-installed the drivers several times, without success. WinXP Home w/ SP2 recognizes it, but during driver installation I get : 'Unable to start the application - The Java Virtual Machine cannot be loaded.' This PC is used by a novice, who has loaded weatherbug, SpyHunter and other worthless crap. It also had/has numerous spyware/adware infections. I ran updated NAV, installed & ran MS Antispyware Beta, and AdAware. I also get this during boot up : 'Invalid BackWeb application id "7288971".' Not sure if this is the problem, but I'm looking into it. Any help would be greatly appreciated.