We have a script to calculate a performance indicator custom attribute.  It is very similar to the scripts provided in the samples.  After we deployed the process template including the script, we realized that we had a condition where our script returned the incorrect indicator.  There was a simple change made to the script, and we attempted to use the Reload feature on the Eclipse client to update the script.  Somewhere in that process, we created a situation where we started getting "Error: Unable to load /ccm/web/_js/?exclude=...status:500" on the web client.  This occurs whenever you enter a keystroke within one of the 3 dependent attributes for the calculated attribute.  We created a new PA from the old template, and instead of Reloading, we renamed the script, did a Browse for the renamed script and then saved the template in the new PA and everything is fine.  The original PA however still exhibits the "Error... status: 500".  Any clues what happened or how to fix?