Code Designer crashes

I've been using Code Designer for the first time since installing WDSC a
couple of months ago.  I'd used it in its previous incarnation with no
problem.  I've been creating a simple print file and have had four or five
crashes in the past hour.  All show a Windows error and the DrWatson short
description is the familiar "Exception number: c0000005 (access violation)."
Rebooting didn't make any difference.

I'm running WDSC v4 sp4, Win2K, 256 meg of ram.  The pattern, if you can
call it a pattern, seems to involve either adding something new--a field or
record format, or modifying something.  Sometimes it happened on a mouse
click, other times on a key press.  

When the crash happens, the process on the 400 continues and the source
member is locked until I shut down the Communicatins Daemon. 

Code 400 has been completely stable; I was surprised at Designer's behavior.

Any suggestions?  I know this is a poor description of the problem.  
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