My problem with this lens as evolved, and it has become clearer. The
focus gets stuck somewhere around the middle of the way between the
infinity and close-up focus. As the camera detects resistance to turning
the focus ring, it comes back, believing it has reached the end of the
focus amplitude. So, I now have two "focus modes": from infinity to
about 2m, OR from 2m to 1m. I'm tempted to open the lens, and try to
lubricate it, but although I've opened a few MF lenses (and cameras), I
never opened a AF one, especially with all the electronics that I
believe this one has inside. Anyone has any hints? Any site with useful
information? Or should I just forget it and send it to Minolta?

TIA,

Rui Durão