Ugh! I'm having the exact same problem. Could you specify exactly what you did?
I've got a fine SQL statement and I get...
Warning: SQL error: [Microsoft][ODBC Microsoft Access Driver] Operation must use an updateable query., SQL state S1000 in SQLExecDirect in
both on a local server and my ISP.
That's from this update query...
$query = "UPDATE links SET link='" . $link . "', link_description='" . $link_description . "' WHERE link_ID=" . $link_ID . ";";