somehow the email push notifications are not working since i jb the device on 3.1.2 and now on 4.0.1 too...i had installed pushfix to fix youtube, but exchange email push notifications were never working. note, push email works just the notifications does not work. so to fix this on 4.0.1 can i use pushdoctor? do i need to first install pushfix or how would it work? any ideas or tips?