Here's a rule of thumb. Always check the AVerMedia download page here for the latest software supported by each AVerMedia Document Camera and the AVerPen: http://www.avermedia-usa.com/presentation/download.asp
Current Release posted on website: AVer+ version 1.3.1.09 (MAC) and version 188.8.131.52 (PC)
We have shipped the older version AVer+ 1.1.1.01 with some of our AVerMedia Document Cameras such as the CP135/155/355/V355AF recently and this version DOES NOT include the AVerPen module so it’s best to download the latest copy on our website. (uninstall the old copy and install the new one).
NOTE: If you have difficulty uninstalling the older software, check your Windows task bar and exit the "AVer+ Control" icon. On the MAC, this icon can be found at the top menu bar.
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