Pressing <Windows>-key launches dolphin

[marc]

Every time I press the <Windows>-key, gnome launches dolphin.

I tried to create a shortcut via System/Preferences/Keyboard shortcuts
to launch dolphin via <Windows>+d (or Mod4+e). This didn't work out, so
I removed the entry.

Now, however, when I press the <Windows>-key, gnome launches dolphin.

Since the entry no longer appears in Keyboard shortcuts, I have tried to
find the file that the app modifies (and gnome loads) to remove it
manually. This, however, I have failed to do.

Can anyone help? Thanks.

-- 
Best,
Marc

"Change requires small steps."