[plt-scheme] pixmap caching?

Silly question...

Does DrScheme on Linux cache pixmap images to X11? Firefox and OpenOffice do
the same thing and it's a wonderful way to crash thin clients or other
diskless workstations very handily. See this bug report:

https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/137764

I'm asking because all the thin clients in my lab are just hard freezing
while we're playing with Kathi's fabric teachpack. If it's not the pixmap
cache issue, I'll need to do some more investigating.

Todd
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