Thanks PeterH, I thought 512 MB RAM would be enough RAM in the Due. Maybe not. BTW, that PaulS guy made me laugh for hours with all his rhetorical responses. He's an uproariously funny guy. Duct tape! Okay, perhaps my questions were partly vague, but I'm a noob at Arduino, and I think even we noobs deserve respect. You gave me lots of respect PeterH, thanks kindly.