Irrelevant since you can't tell what ROM the calc has until you buy it, take it home, and hit F5 diamond (. The difference between versions is almost nonexistant. Read this to learn more: http://rhf.bradley.edu/~rkremer/tifaq.htm#7. >If I am getting a new TI-92, what ROM version should I look for? What is >different between different versions? > Eli