Cache Problem

ImvecUser1_(Delete)_2148388

Dear all,Big Problem, please help! Thanks. In a customize module, a browser is cut into two frames, left and right. Right frame is only for updating database record, and left frame is used to display the updated result. And whenever Right frame finished update, a script will be called to reload the left frame. However, I found that even left frame is reloaded, it still show the old record, but when I check the database, it is already updated. So, I force refresh by left click my mouse and select refresh. A new record will be shown, if I force refresh 3 times.The HTML header is already modified by adding expires = -1, set pragma = no-cache and cache control set no cache. so that Caching should not be allowed. To be safe, the tempporay internet file is also cleared.But when I test the program, it still load the old record, unless I force refresh 3 times.There is no proxy between the server and PC, so I have no idea for the problem. Any one could suggest a solution for the above problem or reason ? Thousands of thanks.