DrScheme gave me the error message in the subject -- I wish I had copied or screenshotted it, but I was so surprised to see it I just clicked "OK" to see what it would do, so I may have the wording slightly wrong. Anyway, DrScheme promptly crashed (and Mac OS gave me to "quit unexpectedly dialog") when I hit "OK".
I don't recall doing anything intensive when that happened, I was just running a program I had run before (in Dracula). Anyone know what might have happened, or what further information I should look for to help diagnose this? -- Carl Eastlund