Custom Python script tool produces result but crashes mxd

Discussion created by jodonnelliv on Apr 9, 2012
Latest reply on Apr 9, 2012 by jodonnelliv
I've produced a relatively simple Python script that strings together several geoprocessing tasks in order to calculate the volume of a stormwater detention pond. I've been working on this for a week or so, and just recently I started having trouble running the tool. Whereas before I would see a geoprocessing window after clicking "OK" to begin the process, now nothing pops up. The script tool finishes and produces the results I expect, but then the mxd becomes completely unresponsive. Clicking anywhere inside the mxd just makes a "ding" noise. It's as if the window that formerly was visible is now hidden somewhere and waiting for me to click "OK" in reply to a message that the process completed. I feel like I'm missing something insanely simple, but for the life of me I can't figure it out. Please help!

Running Windows 7 64, ArcEditor SP 4