Newbie, Pls help

Hi, To all .... :) Im a newbie to php so pls be patient. I have developed a web application using php,apache and mysql. My system in testing and developing them is Win 98 2nd Ed and sometimes WinXP Prof Edition I have tested my application using my system and it worked find When I deployed it to my client's system Win XP Professional Japanese Version, my application displayed some weird actions Noticeable "weird actions" 1. The pop-up menu doest "pop-up". You need to refresh the page for the popup menu to popup. 2. I have a download csv function, when the user clicks on the link, it will ask for it to be opened or saved but when the user chooses an option it does no action! I also think that this might be a result of "security" they impose on downloading and popups. Please any suggestions?!? Thnaks a lot!!! MABUHAY!!! Capital One Classic Mastercard 60 second response online. http://mocda.com/1/c/681064/117934/307081/307081 AOL users go here http://mocda.com/1/c/681064/117934/307081/307081