(Running Nuendo 6.07+Nek 6)

This might have started happening when I installed the trial of Cubase 7.5.
I've noticed a few weird things since then.

If MediaBay is open, most of my key commands stop working.
Close Media Bay and presto, all is good again.
It doesn't even have to be selected, it can be hidden behind
other windows and still my key commands go blotto.
This definitely wasn't the case until just recently.
The first time it happened I thought my keyboard died.

How is this software changing things like this on its own?

Anyone ever experience this and have a fix or whatnot?

Thanks for any info.

Trash Prefs.