Well if fart machine requires user input it will freeze after installing it... not sure cause I have never used that cab... Guess im not big on fart noises but try this...
HIDE:Enabled
CAB: \Storage Card\Cabs\Fart_Machine.CAB
HIDE
isabled
No smiley face just a uppercase d....
Any cabs that require user input need to be inside that hide command... Hope that helps.