DVD Decrypter Question!

I keep getting I/O errors when I burn dvds with DVD Decrypter. It worked fine for months, now all of a sudden it has stop working. The error reads somehting like this…

The Semaphere Timeout Has Expired.

This is very frustrating. I have reinstalled my External DVD burner, tried different discs, and the problem wont go away.

Thanx!