Hi friends , I have an WYSIWYG applet that save file on local disk. Since I was unable to figure out how to change the policy file on a mac OS X. I connect through Mac os X (explorer 5.2 for os x) . it dosen't pops up the dialogue box asking for permission to run the signed applet. However, it show java.security.AccessControlException . It simply shows loading message for applet. then it gives security exception . It is working fine with windows m/c. If anyone has any idea of a work around I would appreciate it.