I have the same problem but I thought it was because I was using a mac I can print fine as well but it's just the saving. Tell me if you find anything and I will as well.
I am trying to use my memory card, compactflash. never had this problem before. put card in and it says it is reading it and then it it says 25 photos. i push save and it says, checking for pc and it does this a few times and then it says pc is not connected. no window comes up on the pc to save the photos. my printer can print so obviously it finds the pc for printing. any suggestions? thank you