Stuck on an Invalid object name error

[bwcc]

I've been working on a front-end to a database for a while now.  There are 2 databases - dou_staff and mso.  In the mso dbase, I recently created a new table called mso_tasks.  I've used SELECT statements on that dbase w/o problems so far. 

 

A new page reads:

 

<?
$id=$_GET['id'];
$server="********";
$username="*********";
$password="**********";
$sqlconnect=mssql_connect($server, $username, $password);
$sqldb=mssql_select_db("mso",$sqlconnect);
if (isset($_POST['submit'])) {
mssql_query("INSERT INTO mso_tasks ('step_id', 'cdate', 'sdate', 'ddate', 'email', 'complete') VALUES
			('{$_POST['step_id']}', '{$_POST['cdate']}', '{$_POST['sdate']}', '{$_POST['ddate']}', '{$_POST['email']}', '{$_POST['complete']}')");

}else{
$row=mssql_fetch_array(mssql_query("SELECT * FROM mso_steps WHERE id='".$id."'"));
mssql_select_db("dou_staff",$sqlconnect);
$rowstaff=mssql_fetch_array(mssql_query("SELECT * FROM staff WHERE id='".$row['staff_id']."'"));
?>
....more code.....

 

The UPDATE statement is yielding the Invalid object name

 

Warning: mssql_query() [function.mssql-query]: message: Invalid object name 'mso_tasks'. (severity 16) in task_assign.php on line 7

 

If I put a simple SELECT statement before the UPDATE statement, the SELECT statement runs fine and returns the query result.  I checked the permissions for the username and it's the same for all of the other tables as well.  I have also tried using <database>.<user>.<table> format, with the same result.  This is perplexing me - any insight would be appreciated!

 

[bwcc]

Update -

The insert command in Query Analyser also gives the same error.

But an Update command works just fine.