A guy on my webboard posted this, i don;t know the answer so any help would be nice

ive recently started a css template and i designed some custom cursors and im looking at the code and i cant tell why the cursors are acting so weird i think i didnt declare what the cursors are heres my code

body{
cursor: url("Cursor.ani"), pointer;
}

p.s. i am testing in ie6 so the pointer should be a valid declaration, and i am puting them in body in the header tag should it be in the body? i know im a newb to css