Yes, we have recently run into this as well. Below is the message window that seems appears to users:
Unfortunately, this has nothing to do with MII. We can thank Oracle for putting this check in the latest versions of Java. This message results from Java going out to see if there is a newer version of JRE available in a vain attempt to keep Java users on the latest, “most secure” version available. The good news is that we can bypass this message by selecting the “Do not show this again for this app” box and selecting “Run”. The bad news is that this has to be done for every applet on every web page. Once this is done, the user is no longer prompted with this message until a newer version of Java is released where they will have to go through the process all over again.
I would also be interested to hear if anyone else has any ideas on how to deal with this?