[q] help please

[TheBaddest]

i Cannot Mount SUB Storage, or basically use my SD card at all. I've completly reset everything on my droid incredible, the only thing that works is pretty much the Recovery Mode.. When i try to Mount USB storage, i get an error that says

"E:Unable to write to ums lunfile (no such file or directory)

I Have not idea what to do, Pleaseeeee Help Me :'(