Error opening midi out device

I try to use Version 4 with XP. A few days before i could here the midi drum song.I could click also on one tom and heard the sound.

Now i get everytime i want to play back a midi file. the message "Error opening Midi Out device"

What can i do?

Check what device the metronome is set to use and change the setting. See if that helps.

The Metronome and the output device are set the same. But i can hear the metronome only very low.

Right, so change the metronome to use a different device. The board was hacked a few motnhs back and I KNOW there were posts from folks on how to fix this. Sorry, but my memory is fuzzy and I think the fix was simply to make the metronome and output use different devices or they would conflict.