I have the LG Venus and one thing that really bugs me is I need to reconnect the bluetooth every time I make a phone call. I'll call someone (or receive a call) and everything works as expected but the next phone call in or out gets sent through the phone's earpiece, not the car speakers even though the HU shows who is calling and lowers the music and everything! When I disconnect the bluetooth and reconnect, everything works again for one call. Then I need to do the disconnect/reconnect before the next call!

Any ideas?

Sounds like a phone issue because I have the x910bt paired with an iphone 3g and it works flawlessly. Try searching for LG bluetooth trouble shooting forums. Or worst case scenerio, get a new phone. Might be time to upgrade.