IE 5.0 / IE 5.5 causing problems

Hi,
IE 5.0 and IE 5.5 causing the big problems to me. i am writing some code for opening a separate window. In this window i am opening a SWF file.
but when i open this SWFPopupPat() in IE 5.0 it opens correctly without scroll bars. but when i open it in IE 5.5 it attaches both horizontal and vertical scroll bars with the popup window.
i am using SWFPopupPat() function for opening the flash file.

the code i am using is this :