This bug was fixed in the package cuyo - 2.~-1.1-1ubuntu3
---
cuyo (2.~-1.1-1ubuntu3) karmic; urgency=low
* Don't regester MimeType=application/x-executable in
the .desktop file. (LP: #386438)
* debian/patchs: Move all Ubuntu inline changes into quilt patches.
- gcc4.4.patc
the problem is the desktop file:
[Desktop Entry]
Name=Cuyo
Icon=cuyo
Type=Application
Terminal=false
MimeType=application/x-executable;
Categories=Game;BlocksGame;
Comment=Play a tetris like game with many levels
Comment[de]=Ein Tetris-artiges Spiel mit vielen Leveln spielen
Exec=cuyo
"MimeType=a