There has to be an answer somewhere on this board. I'll just keep spamming until I get banned or someone offers something no one else has.
Do you have latest hboot (1.54.0000) and Radio (1.01.01.1112) ?
Q: What are the advantages to flashing newer firmware?
A: (hboot) Compatibility with future software from HTC.
A: (radio) This could potentially resolve any connection issues, or low signal quality, that your device may have.