Firmware Upgrades

"fixed, usually rather small, programs and/or data structures that internally control various electronic devices" - That is Wikipedia's definition of firmware. Remote controls, projectors, iPhones, and SMART Boards have it, and sometimes they need updating. SMART Boards are often in need of firmware updating when strange behavior is evident. 
Some of the symptoms include: 

• squiggly lines when users are drawing straigh ones. 
• reversal of horizontal of vertical planes while drawing (upside or reversed movemets).
• reduced sensitivity.
• limited connectivity to the computer (stops working sporadiaclly).

Before following the attached steps, be sure that your SMART Board Tools or Board Tools application is running and is updated. You may also want to unplug and replug the device or try the connection wizard (Board Tools>Open>Control Panel).

It doesn't hurt anything to upgrade the firmware in any case, so give this a shot the next time you are experiencing unexplainable behavior:

Firmware Updating Steps

(Video to walk you through it all)