ExecuteNoQuery giving unspecified error

Hello all,

I have an ASP.Net App the works perfectly in the developement environment, but when I publish it to my server and try to use it off of the server it works until I try to update the database.  The database is in access.  I get the following error "An unspecified error occured."  I have narrowed it down to a specific line of code that is causing the problem, when I ExecuteNonQuery.

Here is the code for the function:

try
        {
            // Path on server
            string connectionstring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + AccessDBPath;
            // create database connection
            OleDbConnection dbconn = new OleDbConnection(connectionstring);
            dbconn.Open();

            string sqlcommand = "update Customers SET CompanyName='" + CompanyName + "',ContactFirstName='" + ContactFirstName +
                                "',ContactLastName='" + ContactLastName + "',CompanyOrDepartment='" + CompanyOrDepartment + "',BillingAddress='" + BillingAddress +
                                "',City='" + City + "',StateOrProvince='" + StateOrProvince + "',PostalCode='" + PostalCode + "',CountryRegion='" + CountryRegion +
                                "',ContactTitle='" + ContactTitle + "',PhoneNumber='" + PhoneNumber + "',Extension='" + Extension + "',FaxNumber='" + FaxNumber +
                                "',EmailAddress='" + EmailAddress + "',Notes='" + Notes + "',LabPCWired='" + LabPCWired + "',RegisteredModules='" + RegisteredModules +
                                "',UserDefinedRegistered='" + UserDefinedRegistered +
                                "' WHERE CustomerID=" + CustomerID;
            // 1. Instantiate a new command with a query and connection
            OleDbCommand cmd = new OleDbCommand(sqlcommand, dbconn);
            // 2. Call ExecuteNonQuery to send command
            cmd.ExecuteNonQuery();  // <--- !!! This is what is causing the error !!!
            // 4. close connection
            dbconn.Close();
            // return
            return true;
        }
        catch (Exception ex)
        {
            throw ex;
            return false;
        }

Any help would be gratly appreciated.  I am thinking I have something configured incorrectly on the server or in my web.config file.

Thanks