I have a user running Excel 2007 on a Vista system that is running into
several issues. See below.

1- His Personal.xlsm file in VBA is set up so that it automatically opens
each time he opens Excel (so his macros are available each time he opens
Excel).

2-Error Message: Excel experienced a serious problem with the
c:\users\Tom\appdata\roaming\microsoft\internet explorer\quick launch\excel
vba\personal.xlsb' add-in.

3- Once the user disables the add-in his Personal.xlsm file will no longer
open in Excel unless he open the file manually.

Any help is greatly appreciated.