We will be removing support for 32-bit operating systems soon. If you are still running a 32-bit operating system, TLOPO will no longer work in an update coming in the near future. We will announce when this update has been released. This should only affect older Windows machines. To see if you are affected, please open up the Control Panel and navigate to System. Then look for "32-bit" next to "System Type". If your computer says "64-bit", you will not be affected by this update.