Here's some information from Microsoft's Knowledgebase:
http://support.microsoft.com/default...b;en-us;279680
"Sasha" <(E-Mail Removed)> wrote in message
news:149501c37841$d1d217c0$(E-Mail Removed)...
> I got this problem.
> When I use macro for formating tables in long document,
> Word (after few formated tables) keep asking if I realy
> want to do this, because it has an insufficient memory and
> tells me that there will be no possibility to undo this
> action.
> I want to disable this asking note, because i wont use
> undo action.
> Thank you for helping me out.
> Sasha