I experience many reboots in PR 1.3 overclocked to 1150, especially when I use the phone, but not only (sometimes I just see it rebooting while it is on the desk with low-power screen displayed). In PR 1.2 I overclocked to 1200 and I don't remember of any reboot. Is it only due to my device, or did something change whith how voltage is managed? Am I the only one to experience a stability loss with the N9 and the last version of Opptimizer?