2 Popups in Explorer not working?

[Pereira]

Hi, I have a button with:
on (release) {
getURL("JavaScript:popup1();");
getURL("JavaScript:popup2();");
}

and in the html these:
<SCRIPT LANGUAGE="JavaScript">
function popup1() {
popup_1 = window.open('news01.html','popup_1','toolbar=no,lo cation=no,directories=no,status=no,menubar=no,scro llbars=no,resizable=no,width=567,height=401,left=0 ,top=0');
}
</script>

<SCRIPT LANGUAGE="JavaScript">
function popup2() {
popup_2 = window.open('news02.html','popup_2','toolbar=no,lo cation=no,directories=no,status=no,menubar=no,scro llbars=no,resizable=no,width=567,height=401,left=5 00,top=400');
}
</script>

the problem is that it is working normaly in MACH in all browsers BUT in PC only in Mozilla/Firefox.... and NOT WORKING in EXPLORER.

someone knows why?
thanks