Hmmm. I had no problem with the link. ftp://ftp.ti.com/pub/graph-ti/calc-apps/82/featured/graph3d3.82p >I was looking through an old issue of 80xthing, and came across a program, >presumably written in assembly, for the 82, called Graph3d. (The winter >issue of 97). The program allows you to graph 3d equations on the 82. The >link to download the program does not work.... Can anyone help me out?