Real easy. I had a wierd entry on dec 31, 1969. Believe me, I didn't put it there! As soon as I cleared the entry, it synced right up.

The desktop can only read through 1970 so, make sure you don't have anything before 1971 and it might work.

Use dbfixit to find it easily and then rip it out yourself. no need to pay for dbfixit.