Ive been messing around with Maya (Student Edition for several days now and ive been doing fine until yesterday. Suddenly My navigation settings have changed. When I zoom in using my mouse roller, In perspective view, I zoom in 3x faster then normal, maybe faster. No longer does Alt-Left click do roll over. it does Drag instead (Drag is what Alt-right click does)

The Big Question
I need help changing my zoom sensitivity. I only have this problem In perspective view, no other view. How do I change it back to zooming slowly in instead of zooming fast. And I need to change My Alt left click back to roll over. How do I change these Navigational Settings.