I have a good system, VTL MB 450 etc. I am going for the Fidelizer pro for 2 reasons:
1. improve the sound
2. your work, and the regular follow up on this site, justifiy a money contribution.
As for my problem. When I install Fidelizer (the last free upgrade) on Windows 7 the upgrade is not available on the initial image. I tried Google Chrome and Explorer without success. More, the selection of specific details is grey and not available.
Robert