I was using the 7.1 version until Bernoulli provided me with the hyperlink. Now I'm a free man with the 7.5 version.
Agree that AVG Anti-Virus Free is way better than either Norton or McAfee paid version, especially for a trading computer. (Used Norton for years, watching it get more and more bloated; couldn't tolerate McAfee's built-in obnoxiousness and outright deception about my system's protection shield, for more than a month or two.) One nice exception to "you get what you pay for."