I've noticed that after I force close com.htc.bgp the 'searching for HTC Sync' box no longer shows up on the EVO when I set the usb connection to HTC Sync. Opening the Calendar app seems to resolve this (starting up com.htc.bgp again?). Also, on the PC side I'll get a 'CAPI_Worker module has stopped working and needs to close' box after every 2nd or 3rd attempt at syncing. I must reboot the PC in order for the EVO to detect HTC Sync when this happens.
After searching for an answer, I tried clearing the data for the Calendar, Calendar Storage, Gmail, and Gmail storage applications. In addition I disabled any and all syncing options (Facebook and Gmail) and even tried putting it in airplane mode and then clearing everything out again. My EVO is stock and not rooted or anything.
I think that covers everything... Any idea what is causing this?