iTunes is updated to 9.1 from 9.03, People who are using blackra1n, just stay away from update if you wish to keep using blackra1n to boot or jailbreak 3.1.2. iHh8sn0w, the developer of sn0wbreeze already warned us to stay away from update,
As per iH8sn0w this issue is only with Windows users only, Though he has just released the fix for this. Since it is not tested atleast by me, I’d suggest you all to just wait for sometime….
We’ve to yet hear from Geohot about this….