Had my MBP just over a year (out of warrantee on Dec 2) and when plugged in it randomly loses power (light on charger goes out and does not charge) and the computer turns off (when battery is almost full). A couple times the date and time has reset as well when I turn it back on. Took it to the apple store and they ran diagnostics, said everything checked out. The guy said it could be the logic board but everything looked good. He reset the SMC and it didn't do it for 3 days but happened again this morning? Has this happened to anyone else?