need help caching problems!

Hi , I am very new to php and I installed :php421 ,xitami server on Win98se and trying to post at phpbuilder, but seems like my questions is being ignored , I don't know whether I ask the right question or I was in the wrong place ! , so I try here , and would like to request for help ,please . I am having problems of running the download application , which I am not sure whether is sessions or caching problems . Description of my problems. 1. I have a index.html which do nothing except at refresh a database.php 2. it seems that the 1st time it run properly by displaying http://ServerPC/database.php?webadmin=some_cache_id... 3. but I don't know why now it just won't start anymore whenever I call the index.html it will only shows http://ServerPC/database.php then it stop with a blank page and the "?webadmin=webadmin=some_cache_id..." won't show anymore , unless I type it myself? And I just need to type something like "?webadmin=' it will auto show out those cache in the past and I select one of them or just simply leave it "http://ServerPC/database.php?webAdmin=' , it will again display the page that I expected successfully.I would like to know what is my problems ? Thanks