Last month, I published 10 tweaks for Windows Vista RC1. It got a good response, but it also drew some complaints. "Too basic," said some critics. "And hey, those aren't all tweaks." OK, fair enough. To satisfy the critics (you know who you are), I present 10 expert tweaks for Windows Vista RC2. No beginner-level stuff here, and I've clearly labeled which are tips and which are tweaks.