There should be another number besides the voltage on the capacitor. This is the capacitors size in farads, usually micro-farads. The voltage rating isn't nearly as important, but go larger rather than smaller.
You also need to get the same type of capacitor. Electrolytic, Ceramic disk, etc., there's a bunch of different kinds. They all behave a little differently.
Go to a REAL electronics store and they should be able to help you figure out what a good replacement would be.
One other thing.....
A real electronics shop should have a cap tester. They can tell you if the cap is good or not, and also what size it is, in case it isn't printed on the cap. Sometimes they use a color code too.
[This message has been edited by loudnaybor (edited 12-01-1999).]