Hi! I'm a complete newbie to Maya, but I do have "mild" experience with Hash's Animation Master and I've been using Flash for the past 7 or so years.
In any case, I can't do any sort of keyframe animation using Maya PLE. I do exactly what the included tutorial says, but as soon as I go to change the frame, all changes I've made are lost.
Process of steps for attempting to just move a sphere:
1. Create a sphere (nurbs, in this case)
2. Center sphere on plane
3. Hit [s], creating a keyframe on frame 1 (with the sphere selected)
4. Going to frame 6
5. Hit [s] again
6. Drag sphere to a random location
7. Select any frame between to see the motion
Typically when I hit 7, I don't see anything change. I'll go back to frame 6 (the key) to see that any sort of changes I've made to it are gone. Anything I'm missing here?