Again, thanks for these tips and insights - all so good I just printed 'em out. I do have Amapi 6 and will try Mark's suggestion ASAP. (Yet another interface to try to remember....actually I finally got to like Amapi last year...) I did just order a 64mb MX2 card and will try it soon as it arrives but I imagine it is something else - at least for Carrara. I know there is a problem with Truespace and the ATI card. I do want to Use Carrara because of the better interface. Wondering what might be wrong with my machine here.... Thinking more large scale now, it is sometimes very slow to do some simple tasks in windows (win 98) and has begun to freeze/crash and loose the connection when using a 3Com webcam. Should have plenty memory and power. Missing DLL or Active x or .... It is an IWill Mboard, Athlon 1.33 gig processor, 384 mb PC133 memory, plenty HD space and so on...... These symptoms were once due to vid card in another machine.... Any input would be greatly appreciated, Sincerely, Rivers