DVD recorder disappears after one DVD burn

I am using Roxio Easy CD Creator version 5.3.5.10u (i.e. patched to
current)
I have a machine with an internal CD drive, an internal Plexwriter CD
burner and an external USB Pioneer DVR-104 writer.

When I burn a DVD in the external recorder it burns fine, but when I
am done, I cannot do another burn to the external recorder until I
unplug the USB cable and plug it back in. The drive still shows up in
My Computer and in the device manager. It is still responding. I can
read DVD's and CD's fine. Just Roxio that doesn't seem to see the
device anymore.

Anyone else seeing this one burn wonder style and is there a solution?

tj