It was a good day today until I saw this thread and saw that "Cyrix" word again. *shudder*. Sure it may work but most software if you read the Readme's does not offer compatibility with Cyrix processors and for good reason. Unsure if 2K officially supports Cyrix and I am unsure if NT4 does....although it did run back in the day on those few people who actually bought one over a Pentium.