Hmmmm. I'm running OS8.6 and Carrara almost never crashes. Just lucky I guess. It's definatly a system configuration thing but, what it is, will probably be pretty aggravating to get to the bottom of. I've had the dubious good fortune (lol) of having a system set up that completely disallows a particular Aladdin Stuffit operation from working on my boxes. Aladdin ackowledged that that happens a few set-ups and that they are completly in the dark as to why and we're collectivly trying to figure it out. It's winding up looking like disk driver incompatiblity issue. Maybe you've got something like that with Carrara. Soooo, make sure to visit the Eovia site and log your problem with their on-line form. Maybe Antoine and crew have a fix or workaround. The MC site used to have their FAQ section which helped resolved a couple of issues that I had with Carrara. Hopefully, Eovia still has all that information. Good luck Mark