Lynn,
You would need to install the ActivInspire software suite that includes the driver which is located in the Support tab > to the right select "Download ActivInspire" select your language and operating system. Once installed and you open the software for the 1st time it is going to ask for the activation/serial number located on a sticker on the right front of the ActivBoard (if one came with your model board). (case# 281792)
Thanks!