Can't detect CD-R's in my 2500a

Well I bought this 2500a about 3-4 months ago from newegg and have not had the need to try buring a CD-R until today. I tried 4 different types of media and none of them where detected. Anyone have an idea of what to check? It burns DVD’s just fine.

Win XP SP1 with updates
2500a with an older version of herries firmware (1.07) on secondary master

Hope I provided enough info

Try some of my suggestions in this thread: