I recently upgraded a HP 64-bit Vista machine to 64-bit Win 7. The upgrade went well. Then I tried to add a new printer, HP OfficeJet 4500-series multifunction machine. I used the prepackaged Win 7 installation disk. After driver installation, the machine sees the printer just fine. However, every time I send a print job, the job appears in the queue for about 2 seconds then disappears without the page actually printing. The printer is connected to a USB port. I am able to initiate a scan from the desktop just fine. I can print to a network Toshiba printer in another room just fine. I just can get the little HP to print anything. I did several software uninstalls and reinstalls with no luck. I went to the HP web site and downloaded the drivers from there and tried, but no luck. I contacted HP tech support and they sent me an email with directions for a level 1 uninstall. Did that and still no joy. The HP email also gave instructions to use an alternate device driver. No luck. Finally, I went and got another printer from a different company (Cannon). Same problem. Now I'm thinking that its a Win 7 glitch. There are no error messages. Win 7 printer troubleshooting does not see an error. Any ideas as to how to fix this?