Jave Security Concern

We have a workstation that intermittently has the below pop up when they click a button to re-target. The problem seems to be isolated to this workstation and happens with various windows logons.

We have tried clearing the java temps and reinstalling java with no luck

Ignition 7.4.3
Client Java 6 update 20

the code on the button is:

fpmi.system.retarget("SPCCharts", "ignition:80/main", {"retargetOccured":1}, ["Traceability/Traceability", "Nav/Header"])

Try updating your Java to the latest version of Java 6, and then clear your Java cache again, see if that fixes it.