by scilence » Wed Dec 17, 2008 11:14 pm
To solve the problem, I did the following:
1. Go into the registry editor (go to Start Menu, Run and type regedit)
2. Launch a search (i.e Ctrl F with the option to search in "Data") and type "LVUSBSTA". For any place found (only in the "Control\Class" area), just delete the "LowerFilters" item (it is the item that contain the value LVUSBSTA found). For me, I didn't find any other places than the ones mentioned here.
3. Then uninstall the midi device driver, unplug it and plug it back in. Windows should recognise it and install it and it should work!
Like dmitri said, this only works if your megadrum works on another pc. Logitech webcams usually cause this problem.