DOS emulation window issue

From: Peterson, Mark markp@amgen.com Subject: [NMusers] DOS emulation window issue Date: Wed, 2 Nov 2005 10:53:12 -0800 Hello All, I have been running NONMEM under Windows 2000 using Compaq Digital Fortran to compile and have noticed that, on occasion, runs will "hang". Specifically, iterations are visible within the DOS emulation window, the task manager indicates no CPU usage, and the run has not completed. While the DOS window is activated, if I provide either a page down or down arrow keystroke, the CPU begins processing the run again at the point at which it hung, and continues normally to completion. I have also noticed that if I process the same run multiple times, the point at which the run hung in one instance will not necessarily repeat. Has anyone else observed this behavior and/or have insights into the cause? Thanks, Mark Peterson