Linked Tables Problem

Hello, I'm using ODBC (Win2K) to access an Access database in PHP, but I'm having a major problem. The database has linked tables from another database on a network drive, and trying to access these linked tables fails: Warning: SQL error: [Microsoft][ODBC Microsoft Access Driver] The Microsoft Jet database engine cannot open the file 'R:\DATAENTR\dataentr.mdb'. It is already opened exclusively by another user, or you need permission to view its data., SQL state S1000 in SQLExecDirect in W:\Inetpub\wwwroot\wsmr\sberesults.php on line 34 It's definitely a security issue, not allowing access to the linked tables in a database with its own security even though the database I'm connected to via ODBC has full access. Any tips on how to get around this? Any help would be greatly appreciated. Thanks, Justin Smith New Mexico Natural Heritage Program University of New Mexico Department of Biology 167 Castetter Hall Albuquerque, New Mexico 87131 505-277-3822 x226 505-277-3844 (fax) jthsmith@unm.edu