VS 2008 update causes VS2005 to no longer clear undo history on document close

[PJ6]

OK this is annoying... after I installed VS2008 to try it out, apparently an
update was made to the behavior VS2005. Now when I close and reopen a
document I'm working on, the Undo history is remembered. I was used to the
history being cleared when I closed a document. I used this behavior as a
way of checkpointing my progress... now that the history is not reset, it's
actually screwing me up. If I want to revert back to the last time I saved,
I have to either painstakingly click 'undo' maybe hundreds of times, or
close the document without saving and lose my redo history. Is there a way
to fix the editor to behave the way it used to?

Paul

 

[HappyNomad]

That's how I use undo/redo as well. It was already annoying with VS2005, how
it saved global undo history for the entire application session. Now the
annoyance is magnified with VS2008 -- it saves all the undo history for each
document! If anyone knows how to turn this off, please post the solution
here.