I've managed (somehow) to fix the
problem I was having with not being able to display the phonebook in the dash display.
I had another
problem with my Deisre HD, where-by I couldn't send a text to certain numbers. After a quick google, it appears that the DHD uses the call-history to find the phone-number for 'contact' you want to send the text to, and the fix is to clear the call-history, so that the phone has to use the actual phone-book to find the number. I did this to fix this
problem, and it sured the
problem.
I'm not sure if it's coincidence, or not, but the bluetooth (phonebook) connection through the car now works to!!!
So, if you've got the same
problem with not being able to able to view the phonebook on the dash-display, try clearing the call history on the phone.....