>I use NAV and I didn't have any problem with it. They do not seem to have a competive upgrade however. The full package is 70$ CAN (http://www.symantecstore.com/dr/sat3/ec_MAIN.Entry10?V1=428582&PN=1&SP=10023&xid=27677&DSP=&CUR=124&PGRP=0&CACHE_ID=0)

The downloadable version is a bit cheaper. Here is the upgrade (including competitive) rebate. http://nct.digitalriver.com/0001/images/nav03_upgrade_ecom_20.pdf