I have an applet which is used on a number of pages in my web site. It requires excute priveleges and is signed with a certificate. There are around 1500 users who use the site reqularly and a handful (including myself) have this problem. I'm sure sure but I think it might only occur with users who automatically start more than one page containing a signed applet. For example, my browser starts 2 pages from the web site where this applet is active. The problem does not always occur and when it does then the page just needs to be reopened.
Here is the console dump from today. One page loaded successfully, the other didn't. The lines begining with '[PortalLauncher]' are stdout messages from my applet.
This is all happining as the page loads. There are 2 identical applets being started. One applet is able to seach and load a certificate but the other cannot.