After booting I receive this message:
Process system is not responding: 1. Close 2. Wait
Whatever I choose I got only black screen. I'm using official unbranded latest rom -> 2.2. List of installed apps.
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How long are you waiting? Sometimes it can take a really long time to load.
What you'll probably have to end up doing:
Turn off your phone, then start up in Safe Mode by pressing and holding the big black dpad key plus the power button. Keep pressing them until you see "Safe Mode" on the screen. Uninstall any apps you've installed since your last restart. If you're rooted, do a nandroid backup first.