from time to time ghc compiled programs simply crash on my windows2000 without any meaningfull error message. I guess this has something to do with storage management (I vaguely remember having read something about errors durcing gc on this list, but did not find the corresponding posts in the archive).

We need more info, in particular an example of a program that crashes. Does it crash in the same way every time? Does it depend on what GC options you use? Cheers, Simon