1. Hmm. Dont know, you may have to do a factorry reset.
2. This is just something that comes with the type of screen on the phone. It is normal and shouldnt really be all that noticeable.
3. Menu, settings, scroll down to language & keyboard, (multi touch keyboard or swype) wichever your using. In there you should see auto correct or something similar.
4. Welcome to Android! And the best i have ever had the Razr! I made the swap from bb to andy bout 2 years ago, hated it atfirst, but after a few weaks i discovered andy is far superior.