Ok, well I posted this yesterday but the forums crashed or somthing and it got deleted. I am pretty sure this will make Windows Aero work and fix other problems
Go to Desktop or Wherever LimeWire.exe is
Right Click on Icon
Go to Compatibility Tab
Go down to the box where it says Run this program as an administrator
Check the box
Click Ok
Star LimeWire up and when Security box pops up click Allow
LimeWire should start up with Aero and other problems may be fixed
I think this should work if you havnt tried it yet. Just post here for other Vista questions cause I can help a lil since I have been running Vista since RC1.