I went to the Logitech website and downloaded the latest drivers for the Itouch KB and MX700 mouse. After installing the drivers and rebooting, my mouse wheel now works in RvS.

Here are the URLs for the Drivers:
MX700 Mouse Version 9.78
http://www.logitech.com/index.cfm?page= ... nguageid=1
ITouch KB (Duo) Version 2.15
http://www.logitech.com/index.cfm?page= ... nguageid=1