Does anyone managed out, how to set BT to work corretly with ATI VGA @1366x768 resolution?

I found the way to get resolution if i use fresh USB stick (fresh BT on it). The shit is that:--> 1. boot persistent BT 2.download ATI driver 3.install ATI driver 4. be happy that all ir great 5.reboot 6.at starting, persistent hangs up @system-tools-backends loading. All other modes work ok, but after ATI install, persistent is damaged.

Is there something to deal with kernel or smth?

Thx for every suggestion.