Omnia keep cutting off the phone

[Lowell]

Hi, I have a Omnia. About a week ago the device went crazy and I think I might have a virus. What happining is I try to make a call, it says the phone is off and I nhave to keep resetting the Omnia before I can turn it on. Also when I receive a call it will not let me answer the phone. If I do a hard reset it works fine for about two hours. Everything else on the Omnia seems to work ok. Can somebody help me.