I saw you have also an HTC Desire S phone - mee too.
Im trying to update to 3.4.5, but its bootlooping all the time. I tried it with english, multilang, and with 3.3.29 also, but the same problem comes, when i power up, it stays at the white screen with the htc logo.
I would be glad if you could advise me something to solve this problem.
Have a nice day!