I do not have any expansion boards installed.

My problem is that frequently when I turn on the power, only the blue light in the SD comes on, but not the remainder of the KB.

Sometimes, the KB will shut down in the middle of playing a sequenced song.

I have ordered ver 1.6 and will install it when it arrives. Hope this might help the problem.

I though that maybe reinstalling ver 1.5 might set the Operating System back to where it should be. I just can't remember which keys to hold down when turning on the power.

Thanks,

Larry Gosmeyer