Sublime Text 2 Build 2095 is available now. It addresses a few issues with build 2091, which were mostly OS X related - only OS X users will receive update notifications. If you're reading this on Windows or Linux, updating is still recommended.
On another note, if you're using OS X Lion with multiple monitors, you may want to disable Lion-style full screen support so you can still use the other monitor when Sublime Text 2 is in full screen mode. This can be done by adding the line:
to your global settings, which are accessible from the "Preferences/Global Settings - User" menu item.