HTC EVO 4G (P36100) / Windows 7 Professional I have to uninstall and reinstall over and over the HTC Sync. The PC & Phone will lose connection and fail to recognize each other. HTC and Sprint are no help. "We've haven't heard of this issue." Funny, how there are hundreds of posts related to this and they have "never heard of this issue". I need to sync my calendar. Google/HTC you are going to push me right back to Blackberry.