i wish i knew what keystrokes i did, but twice this morning i had just finished delicately tweaking some of the best AE work the world would have ever seen (ha), and suddenly everything seemed to back up about 10 or 20 steps! i tried an "undo", and looking through the history but to no avail.
so, i loaded up the latest auto-save, which was just slightly better than what was currently on my screen, and started that section over.
thanks for helping out a bonehead!
FCS3 / Adobe CC
3.33 GHz 6-Core Intel Xeon Mac Pro
ATI Radeon HD 5870
...and a few TeraBytes o' storage
(then it's on to PetaBytes, ExaBytes and MosquitoBytes!)