AutoCAD Civil 3D

[#1]

Undo has been disabled in order to prevent undo file overflow...

Is there anyway to increase the Undo capabilities.

[#2]

I've never seen this. How about saving and closing the drawing and reopening it?

[#3]

I've seen it fairly often, especially while doing a lot of corridor section edits.  I think that there's a way to turn off the undo function and then turn it back on again.  When you do that the program apparently starts a new file.

[#4]

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SBoon wrote:

... I think that there's a way to turn off the undo function and then turn it back on again. ...

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Undo, Control, None or One

Undo, Control, All

[#5]

I have done this so many.....times today.  It doesn't work.  Software is Civil 3D 2013.  A couple of computers have the message "Warning! Undo has been disabled in order to prevent undo file overflow.  You may re-enable it via the undo command.  The undo file length was 1768915703 bytes".  I've been using the UNDO command since Release '08 & I've never seen this problem.  I have search & search & nothing seems to work....how do you control the length of the UNDO command.  I don't understand how UNDOCTL works cause it's read only.  Does anyone have a solution?

[#6]

Save - Shutdown - Restart the program.