Get url in Netscape 4.79

Ok I’ve got a swf movie with 5 buttons that, when clicked on, use the “getURL” function to goto other html pages. The buttons work fine in Internet Explorer but do squat in Netscape 4.79. Anybody know whats going on here. Heres the code I used. Anybody have any ideas???

on (release) {

on (rollover) {

on (rollOut) {