Adobe Acrobat 4.0 Full Version for PC "cubase getting started" Questions

Get this error when I try to rewire DrumCore 2.5 to Cubase LE4 Get this error when I try to ''Rewire'' DrumCore 2.5 to Cubase LE4. Won't work together. ????? ''ERROR: No Mixer Application is running ...

I cannot find my edit channel settings window... In cubase 5 by pressing on the "e" buttons doesn't show a thing. I've tried expanding the main window to see if I accidentally moved it ...