Interesting. Cheers for the info DI.
I think I might try track down PST and give it a run on my tablet PC, which has a nice lower rez compact screen and runs an x86 OS. I dont mind playing lower-fi games on that than trying to squint at a window on my main gaming/editing etc 30" display.
Interesting that the project leader ended up getting a job with Obsidian
which I venture to say would account for the gradual slow-down.