odbc going nuts

Hi all, Just finishing off a site using odbc and Access and it's thrown up a problem that wasn't there yesterday. I have a simple login with a username and password. If either are blank, the user gets bumped to the login page. otherwise the user table is searched for the username and password. my code looks like: $strSQL = "select * from user where (Username='$username' and Paswd='$paswd')"; I have an error script that kicks in if the query fails, and prints the query to screen. I've pasted the query straight into Access' SQL query window and it worked fine. I just can't see anything wrong with the code, or anything else. Any suggestions (apart from dropping Access in favour of another db - client choice) Cheers George in Oxford