I am working in a flash doc I originally created in CS3, but I saved as and made it a CS5, and I can't undo. I went to my preferences and switched my undo state from document-level to object-level and that completely removed all history. Before I did that if I hit undo it would undo the last layer lock or keyframe selection I did not the last thing I did. I also am not seeing quick refresh, if I make a change on the timeline I have to click else where for the change to register it is kind-of annoying, but I need to have the ability to undo because sometimes I make mistakes. Has this happened to anyone, does anyone have a solution for me?