BB Torch :: Music Files And Now Will Music Will Not?

For the past year and half I have been adding to my music collection on my Torch and have had not problems. I had over 1000 songs split between the device memory and the media card. I would just use Windows Explorer to transfer the music and the Torch would always find and add my songs to the collection.

Yesterday I added a few more songs and updated the Torch operating system to most current. Now no songs display. I have emptied the Music folders on the Torch, reloaded songs with file transfer, and tried both Windows Media Player and ITunes with the media sync software on the Desktop software. No luck. A couple times when music was loaded on the media card I would see the music module on the Torch find a bunch of songs with the song counter incrementing up to 50 very quickly, then just as quickly drop back to zero.

I tried to do a restore of my backup, but all my backups now show as possibly corrupted.

I tried going back to an early version of Torch software, but same result.

Blackberry Torch v6.0 Bundle 3049
Desktop Software - v6.1.0 B38 (Multilanguage)
Operator - Bell Mobility

Two other symptoms, Every time I connect the Torch to the Desktop I get - There is no disk in the drive. Please insert a disk into drive DeviceHarddisk6DR58.There is also a file on the primary memory card called Readyboost.sfcache that is 3.7 G and I can't delete it,.