You can get the software from here: http://www.logitech.com/index.cfm/support_downloads/downloads/&cl=us,en
Select your model from the drop down menu and click the arrow. On the next page, select your OS from the drop down menu and you can download the software.
Answers & Comments
You can get the software from here:
http://www.logitech.com/index.cfm/support_downloads/downloads/&cl=us,en
Select your model from the drop down menu and click the arrow. On the next page, select your OS from the drop down menu and you can download the software.