Version incompatibility issues ? MDBs shared between 2000 and 2010 not working wel

[byterbit]

I have a customer with a mixed Access version 2000, 2007, and 2010 network recently showing what look like incompatibility issues.
Once a 2010 user simply saves a shared network file, simple VBA code on a 2000 box opening a form fails.

I have also noticed similar but perhaps more expected issues when I modify a report in a 2003 file in 2010 and then attempt to use the MDB again on 2003.

Anyone else seeing this ?

 

[RainLover]

A bit of a guess here but I would convert to an .mde file which can't be altered, even by 2010.