[Microsoft][ODBC Microsoft Access Driver] Disk or network error - Help!

Hello,

I've been researching this for two days now. For the past two years
I've had local ASP pages working fine with their Access databases. All
of a sudden, I start getting this error:
Microsoft OLE DB Provider for ODBC Drivers (0x80004005)
[Microsoft][ODBC Microsoft Access Driver] Disk or network error.
I've done the following after going to the MSKB, support, asp faqs, IIS
faqs and other posts:
Set permissions in all the applicable folders and files for IUSR and
IWAM (includes wwwroot, app folders, temp folders (for temp jet files),
..mdb files, etc.)
Checked my MDAC version (2.7)
Set the anonymous user in IIS to IUSR with Windows Authentication
Made sure the env vars were set for the temporary jet files
Tried replacing the access databases
Tried a supposed fix in the registry with security-->permissions
Checked my system for any viruses or spyware that may have affected
this
Seems that no matter what I do, I still get this error. Should I just
reinstall IIS and see if that works?

Any suggestions would be appreciated.

Thanks in advance,
KP