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If the data is on a local drive the php returns the querry correctly.  If the data is on the networked drive F: then php returns 

Warning: SQL error: [FairCom][FairCom ODBC Driver][FairCom File Library]No such table or object., SQL state S0002 in SQLExecDirect in 

Here is the pertinent PHP info
(NOT: I am using FAIRCOM drivers to acess c-tree created db's www.faircom.com)
<?
odbc_dsn = "rx30";
$odbc_userid = "";
$odbc_password = "";

$connection = odbc_connect($odbc_dsn, $odbc_userid, $odbc_password);

$query = "SELECT patient.NameLast, patient.NameFirst, patient.NameMiddle, patient.Patnbr, patient.EmpLink, patient.DOB, patient.LicNbr 
	 FROM patient
	 WHERE patient.NameLast LIKE '$ulastname%'
	 AND patient.NameFirst LIKE '$ufirstname%'"; 

$result = odbc_exec($connection, $query);

?>

I'm tempted to say this isn't a PHP bug but a Faircom bug.  As ODBC doesn't care about local FS issues, its concern is mapping DSN's to data sources.  From that error you've pointed to it sounds like the Faircom drivers are not noticing it.  There is nothing that PHP can do about this.  

Marking as bogus unless you can prove otherwise.

FOUND A FIX
If apache is running as service, the above will not work, run it in a dos window under the user thats currently logged in, and it will....Go figure.  Guess it's an apache prob

Not a bug -> bogus.