This is what I get on my  iMac, 10.5.6 , 7Complete

Drop test using a 2 button Intuos cordless mouse:  with a tilted cylinder
Left click=reg. drop (keeps tilt),    right click=smart drop ( flips to land on flat end).

With the pen tool:
alt/click=reg. drop,   ctrl/click=smart drop

Load test-
with the already in the scene cylinder selected: Left =load obj , right =save obj.
with absolutely nothing already selected  left=load obj, right = no choice offered

pen tool:
alt/click=load
ctrl/click=save obj

My results are consistent.

I don't have 6Inf installed anymore because it was a disaster for me so can't compare with that.

" Try and be nice to people, avoid eating fat, read a good book every now and then, get some walking in, and try and live together in peace and harmony with people of all creeds and nations."
-Monty Python