If your having cat problems, you can try playing Ted Nugent's "Cat Scratch Fever" loudly though your system (like a burn-in cd) and I'm sure they'll stay far away.
Plato's idea's a good one, or you can try placing (don't laugh, it works but doesn't look too pretty) some orange peels (a few) around the speaker area on the floor, won't hurt anything, but cats HATE citrus !!!! Guaranteed
Plato's idea's a good one, or you can try placing (don't laugh, it works but doesn't look too pretty) some orange peels (a few) around the speaker area on the floor, won't hurt anything, but cats HATE citrus !!!! Guaranteed