How to help debug numerous crashes of 21.4.4 on Windows?

I have Cygwin-XEmacs 21.4.4 installed on my win2k system. Every couple of days, it crashes at random times, usually while doing things in GNUS. Just before it goes away, I see a DOS window come up and print something, but it goes away before I can read it. Just now, it happened again, and I guess it had to do some swapping right after the DOS window came up, so I was able to read the message, which said something like: "Windows procedure called during GC?". Is there anything familiar about this problem? Is there anything I can do to get a little more information about this? If the fix has something to do with updating my installed packages, I'd love to figure out how to do that, as it doesn't work on my installation (due to some issue in FTP/EFS). Adrian Aichner and others spent several days trying to figure out this issue before giving up. Is there a SUMO package I can manual install to get around this particular problem? -- =================================================================== David M. Karr ; Best Consulting dmkarr(a)earthlink.net ; Java/Unix/XML/C++/X ; BrainBench CJ12P (#12004)