Jerry,
I know of two possible reasons for this, (a) a very large number of objects,
resulting in a total of temporary objects during conversion which is more
than Access can handle in that process (about 2K, I think, but I might be
wrong), or (b) errors in the code.
Statistically, (b) is a lot more common that (a), so I would suggest you
start looking there. Open the VB editor and from the menu go Debug >
Compile. Any coding error will be highlighted. Fix and repeat until
compilation goes through without errors, then try to make the .mde again.
Chances are you won't have to worry about (a) above.
HTH,
Nikos