Really quick I'm going to tell you my problem that I already posted about in the Trophy thread. Updated to 8773 and my power button is non-functional. Upon insertion of the battery the phone boots up (thank god because the power button doesn't work), and the Zune restore point puts my phone in an endless loop of restarting my phone. I registered over at XDA to try and see if flashing a custom ROM could fix my issues, but I am unsure of what I am doing. I basically would like to flash an older OS version and then be able to update to Tango, but I have no idea if that even makes sense. Can anyone help me out here?