What you should do is to open Bryce and open a big file. Than go to the root of your drive (c://) and check how big win386.swp is. If you have practically no free space left, no luck, you can as well leave to Windows to manage virtual memory. BTW, you should have "Hide system files (recommended)" checked, uncheck it. Also, do not check "hide file extensions for known file types". Open a folder, then go to Tools -> Folder Options -> View and then scroll down. And if you created that abstract in Bryce, it should be able to open it, unless: b) you created it when you had more space, b) file is corrupt.

-- erlik