When Vista first came out, which is over a year ago now, communications did not work at all. Not surprising, as I have other stuff that does not work including a brand new HP scanner. Philips brought out a new release, around June this year, which worked under Vista. Most of us have had no problem with this version. There seems to be two problems - one to do with using it alongside a particular wireless keyboard and the other is similar to your problem. It could easily be a Microsoft problem rather than Philips. Microsoft released Release Candidate 1 of SP1 for Vista late last week. Maybe that fixes the problem.