Hello, i've got a problem with my XSI, and I really need help.

The problem is - Undo/Redo does not work at all. I'm not sure what has caused this but it's very frustrating. Anything I move or basically edit cannot be undone. I've tried Ctrl + Z and going into Edit > Undo but none of that seems to work. I can Undo things on other programs, just not XSI.

Please help.

It sounds like your undo preferences might have reset to zero. This is usually a one-time bug much like the property pages not popping up when you have not even touched the preferences.
Go to:
File>Preferences>General
then increase the number of undos if they are set to zero.

AceMastermind wrote:It sounds like your undo preferences might have reset to zero. This is usually a one-time bug much like the property pages not popping up when you have not even touched the preferences.
Go to:
File>Preferences>General
then increase the number of undos if they are set to zero.

Thank you so much Ace, saved me lots of time and frustration.