I'm currently running a CMS-Flow/CMS-Wave steering simulation on SMS 10.1 After it runs for about 12 hours I got this message: "No write permission in specified directory c:\users\mike\appdata\local\temp for temp files" SMS then asks for a directory that I have write access to, nothing I enters works (same message) weird thing is CMS has been writing to that directory all night (this sim will need to run about 4 days) I use Windows 7 and yes I have admin privileges. Has anyone run into this problem before? Is there a TEMP limit size I have bumped into? Not sure if this problem is with Win7, SMS, or one of the CMS programs. Thank You