Here's a new preview build...
# Fixes for a few more graphics crashes
# Encourages ATI users to update to Catalyst 3.8 drivers, which fix most of our visual corruption problems (finally!).
# Permissions fixes, especially around no-modify objects.
# Single-click opens items embedded in notecards.
# Many improvements to vehicles, especially when crossing region boundaries.
http://www.secondlife.com/preview/
James Linden
PS - If you have an ATI Radeon card and don't have Catalyst 3.8 installed yet, consider doing so. It's a significant improvement. www.ati.com