Hi,
Thanks for reminding me about this thread.
I did not use this anayzes yet to fix that particular problem but what I did already is reduced a default buffer size to 16KB since it was causing too many problems in other cases and after analyzing putty source code I realized they also use 16KB as a default.
Did you try to use smaller buffer size? Did it fixed your problem?
I will take a look at deda locking issue that was described in earlier post since it should not be this way.
Sorry for delay in answering this post.
Thanks,
Oleg