Bruce, I just installed V1.21 binaries (win95) and found that if VGen is closed without creating an app. or dialog it causes an invalid page fault in kernel32.dll. Joel Joel C. Keay Vanderbilt University Office: (615) 343-0514 Dept' of Physics and Astronomy Lab: (615) 343-8255 Box 1807 Station B FAX: (615) 343-1708 Nashville, TN 37235 email:keayjc@ctrvax.vanderbilt.edu