Hi Guys. Here's a quick tour de force to make your HTC sync recognise your Tattoo/Magic/Hero. Although I have only done it on a laptop running XP SP3 it should work on all Windows versions. If this workaround works for you then please take a couple of minutes to write HTC support so the can integrate this solution in future upgrades. It should take HTC developers little time to have this implemented or to make a registry patch available for download. They will probably be more prone to do so if 1000 customers write them instead of only 1 (me) do so. Solution (I'm guessing that you get a DPinst.ext notice when installing HTC Sync V 2.xx): 1. Uninstall Uninstall all other phone software e.g. Sony Ericsson PC suite & Nokia PC Suite. If you have third party bluetooth software running through the USB port (e.g. the OEM WIDCOMM driver used by many third party manufacturers) and want to use HTC bluetooth on your PC, then uninstall the driver. Remember to uninstall all previously attempted versions of HTC sync. 2. Download Download the freeware program CC Cleaner http://www.ccleaner.com/download .Run it and do a registry scan. Fix problems in CC automatically and save the deleted registry entries (you will be prompted).