Had no problems syncing my Palm TX under 3.0, had some problems getting the device recognized under first build of 4.0, can't get it to work at all under latest build 3540. Parallels gets stuck in this cycle of loading the device, dropping it, loading it, dropping it, and each time giving me a message about how it will automatically recognize it next time. This cycle happen about every 5-8 seconds until I unplug the device. Hope we can get a fix to this quick, some of us have jobs where we actually need our software to work in order to get our jobs done. Not happy with all the bugs. Thinking these should have been better worked out in the Beta, not with people who need the software to work when the buy it. Any known help/solution for this problem?