Wow, that was fast, thanks! Something is wrong though, in any empty scene I have a pressure gradient from the top-left (-) to the bottom-right (+) which makes it impossible to do anything. Any ideas?

I don't have a 1ghz unit, but glad to hear it works better. Will get an updated version out soon.

This is so cool! Yesterday I spend at least 5 hours boiling water and blowing things up with this!! It runs reasonably well on a 1 GHz unit. Would be nice to have an update to the latest version, since most downloadable scenes do not work otherwise ...

Runs verrrrrry slowlyyyyy for me, even with only a few "parts" in play.