[etski]

since device info says Mightyrom, I can't imagine you are back to stock. More likely you somehow did a hard reset which wiped out your phonebook and somehow restored settings by accidently triggering a registry restore or something along that lines. do you have sashimi installed or advanced config or a registry editor. Any of these programs accidently run in your pocket could have bizarre consequences. this is why I run devicelock and always try to keep my phone locked. I'm amazed sometimes what I find running on my phone just from ear contact during a phone call !