You can go to Tools--Options and specify the Recently Used File List as 1
(minimum). Press OK and this will then then clear it out so that only the
last file opened is in there.
Go back to Tools--Options and change that number back to whatever you'd like
it to be, for example 4.
This will then make it repopulate that list as you open files, up to the
number that you specified, in this example 4.
HTH,
Katherine
