I have the same problem with my hp6100 photosmart as well. I had to keep reinstalling the the download to get it to work which I have to do every day basically. Now it does not even recognize the usb cable or signal at all and I can no longer print. I have to email everything to my girlfriend at work so she can print it for me. Never had any problems like this with XP. I must say that Vista sucks really bad all around. It is the slowest and worst OS program. I am sorry but everyone seem to be knocking hp printer but these porblems did not exist prior to Vista. This frustration should be directed toward MS and their disgusting effort to make more money off the consumers by changing operating systems and forcing everyone to spend more money on their software and ad-ons. Vista sucks so bad and they know it, so they actually have commercials to promote it now. Has anyone seen the commercials where people are saying "this is window vista?" Yea right. Go bullshit someone else. This fucking stupid shit cost me quite a few jobs because I could not get it to print. I wish I had stuck to my old XP OS laptop. Vista FUCKING SUCKS PERIOD.