Study is Being Solved Currently

"This study is being solved currently" is hanging up my session of Solidworks after over 12 hours, even though the log file shows the Random Vibration study solution took 6 hours. This OS is XP64, with Solidworks 2011 x64, SP5.0. When I look at what is happening with the file structure, the CWR file is actively being increased by 10MB every 5 sec or so, what does this indicate is going on? My guess is that it is saving plot data for every single solution step, whiich is preventable.

SolidworksSimulation