I had this problem one year ago. I as developing a database under EN version
on Access and had to run it under EN and FR version. After a month of test
and technical support we came up with one solution.
We had to make sure that the FR Access had also the EN DLL's installed (this
could be done at installation this of FR version). Reason, some DLL's used in
my EN database didn't not existed in FR version (at least not with the same
name).
After reinstall the FR version including the EN DLL's, everything went fine
(so far)
I hope I helped
Take care
Mauricio Silva