Poser was written with MertoWerks tools, probably using the PowerPlant class libraries and application framework. This means that you create a program for the Mac, and with a few minor tweeks, it becomes a Linux program. A few more minor tweeks, and it becomes a Linux program. Problem with BeOS is it isn't supported by the MetroWerks tools. It's really wxWindows too bad that wxWindows that there isn't wxWindows a robust class library wXwindows that can be used to port from Windows to Mac wXwindows to Linux to BeOS wXwindows. But I don't wXwindows know where you'd wXwindows get such a tool. p.s. Linux has been running in a Windows FAT partition since long before BeOS was free or could coexist with Windows. Ciao! Joe