There's a new version of the Vectrex32 firmware available: version 1.18. This is mostly bug fixes and optimizations (including one important optimization that greatly reduces flicker). If you already own Vectrex 1.10 or newer, you can download the firmware here (https://vectrex32.com/category/downloads/). If you still have version 1.00, please read this (http://forums.vectrex32.com/index.php/topic,28.0.html).