Sorry to post about this issue one more time... It still hasn't been resolved (after 10 back-and-forth e-mails with HP technical support), and I really need your help! First off, I run Windows Vista Home Premium (32). I've used my HP Photosmart C4280 printer for about 2 years, worked fine for the most part. Lately I started having problems, so I uninstalled and reinstalled the driver & software (got the latest versions from HP download site). Since reinstall, my scanner isn't working. Whether I press the "Scan" button on the unit, or I select "Scan picture" or "Scan document" from the HP Solution Center, an error pops up: "An error occurred communicating with the scanning device. Please ensure that the printing device is properly connected and try again". Also, I've uninstalled/reinstalled the drivers/software several times, cleaned temporary files and registry, still the problem persists. Having said that, the printing/copying works fine, so I know that the printer is properly connected. BTW, tried connecting the same printer to a friend's PC running Windows XP and it scans with no problem, so the issue must have something to do with HP interacting (non-interacting) with Vista. Please help!!!