It seems that valgrind doesn't like Ubuntu 7.10; I had to drop back to my Feisty system to generate good valgrind stack dumps. And the tests didn't hang once!
Results for the last two days are at http://kegel.com/wine/valgrind/20071112/ http://kegel.com/wine/valgrind/20071113/
The logs are trimmed a bit more to make diffs less noisy. Diff now shows clearly that there were significant improvements in three tests between those two runs: ole32/compobj, ole32/marshal, and user32/dde Errors still remain in all three tests, though. - Dan