Bee-
Might we humbly suggest that you burn the mickey mouse club kitty hat & videos, along with the mighty mouse ones for a starter. Then you might consider tossing (figuratively speaking, of course) the feline outside for a time each day. If that doesn't work, try getting a chum, or borrowing a well seasoned barn cat for your mouse-friendly feline to associate with. Meanwhile, either get some mousetraps or put up a sign (in front of the snoozing furrball) which says "mouse crossing."