You must include the colon when specifying a drive letter (e.g., "Q:"). 

If a drive letter is not specified, the network drive is connected without a drive letter and can be referenced using a UNC path. 

If the job's user account has access to a network resource based on its login credentials, it is not necessary to add a NetworkConnection resource for that resource unless the job needs to refer to the resource by a drive letter. 

See the adTempus online help for more information.