Now I'm trying to upgrade to 2.2.4 and I tried also with 3.0.0 but I'm getting an error. The same is happening if I'm trying to remove the sw installed.
After a moment the setup says "rolling back action", the bar is going backward and (on installs) there is this image:

Where I can find the description of the error?
I tryed on event viewer but nothing seems there.
I'm using Vista Home Premium 64bit SP2...
Thank you!