Thomas, Sorry for the delayed response. Please try editing the runIDV.bat script. In particular comment in the line that says: REM set idv_memory=512 so that it says set idv_memory=512 Please keep us up-to-date on your progress. Best, Unidata IDV Support > Full Name: Thomas D. Drew > Email Address: address@hidden > Organization: University of Wyoming > Package Version: 4.1 > Operating System: 32 bt Windows 7 > Hardware: > Description of problem: I had IDV 3.0 on my computer, worked fine. I > installed 4.1 again yesterday and while running the script in the window it > makes some sort of error (can't slow the script down to read it) and does not > load. 3.0 worked fine until I took it off. Also, if I run the simpleIDV.bat > it loads fine. Any ideas. I updated Java and uninstalled and reinstalled > 4.1. > > Ticket Details =================== Ticket ID: XBP-777190 Department: Support IDV Priority: Normal Status: Closed