Check your References collection.
References problems can be caused by differences in either the location or
file version of certain files between the machine where the application was
developed, and where it's being run (or the file missing completely from the
target machine). Such differences are common when new software is installed.
Go into the VB Editor. Select Tools | References from the menu bar. Examine
all of the selected references (the checked ones at the top of the list)
If any of the selected references have "MISSING:" in front of them, unselect
them, and back out of the dialog. (NOTE: write down what the references are
before you delete them, because they'll be in a different order when you go
back in) If you really need the reference(s) you just unselected (you can
tell by doing a Compile, available on the Debug menu while in the VB
Editor), go back in and reselect them.
If none have "MISSING:", select an additional reference at random, back out
of the dialog, then go back in and unselect the reference you just added. If
that doesn't solve the problem, try to unselect as many of the selected
references as you can (Access may not let you unselect them all), back out
of the dialog, then go back in and reselect the references you just
unselected.
