I don't know the solution specific to your problem, I'm not psychic as there are many possible causes.

Have you tried the following notes:
315299.1
312308.1
264067.1
273758.1
338398.1
309687.1

I found these with a few simple searches, some mention 10.1 but may be applicable anyway to 10.2.

I will not be in a position to update this thread until tuesday, but I've given you more than enough to go on. If you are still stuck, post in the appropriate forum on OTN.

Bazza