I came across the same problem as Allen (http://groups.google.com/group/micro...2160e9c3e69230)
on my Windows XP Pro SP2 system. Running sysinternals' regmon, I found this error:
47.61777878 odbcad32.exe:4260 QueryValue HKLM\SOFTWARE\ODBC\ODBCINST.INI\Microsoft Access Driver (*.mdb)\Setup NOT FOUND
I have confirmed that the specified key is missing in my registry. I tried to (re)install MDAC 2.8 but I got an error saying "MDAC 2.8 RTM is incompatible with this version of Windows. All of its features are currently part of Windows."
I hope Carlos, who helped Allen, or anyone else, can tell me what I should do now.