the BIOSes stasio just posted for GB boards, they fix the quasi boot issues with sandy bridge, both the one wher the board cycles a few times before booting, and the one in which the board says OC failed after 2 restarts in a row. This BIOS fixes both, fixes mouse support for a lot of people, and adds in a few extras. the issues were only on 2600K, 2500K was okay, so if you have Ivy or 2500K this BIOS update might help with mouse compatibility and add named profiles in the BIOS.
Cool.