Quote:
...but I just assumed that it was the same software that shipped with my Karma. Am I wrong?


No, it's the same software. You say that you've got the latest version installed, so my next suggestion -- upgrade -- doesn't apply.

When you say "you're transferring using Windows Explorer", I assume that you mean using the Windows Media Player Power Toy thingummy? Maybe try uninstalling/disabling it. It could be grabbing the player before RMM gets a chance, which means that it won't appear in RMM.
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-- roger