Help OTG Dongle not recognized

[jpaskell]

All of a sudden, I can't view files (pictures) on my Galaxy tab 2 10.1. I purchased a new dongle from amazon, used the same thumb drive (32GB) I have used before. The upper left corner of the tablet shows it connected, then disappears, and no pictures or recognition that an OTG connection is made,

I tried a new thumb drive, and another dongle.......no luck.

Anyone have any hints?

Thanks,

Jim