Now a happy T3 owner - after experience the delicasy of PDA Navs like my NavMan iPAQ combo last year I didnt want to go down that route again (pardon the pun!).
Instead I bought a TomTom Go - a dedicated compact unit - totally flawless, accurate, holds it's fix, reliable, easy to use, never crashes or locks-up, a whopping 5 hour battery life - it's not an answer to your probs I know but I had to say what a difference the non-PDA option makes.
