Anthony Ray Solomon filed a mandamus petition in this Court, which the clerk of court dismissed for want of prosecution. Solomon seeks reinstatement of his petition. Once a case is dismissed for want of prosecution, this Court may grant reinstatement only for good cause shown. 4th Cir. R. 45; I.O.P. 45.3. In his reinstatement motion, Solomon fails to explain his noncompliance with the court's order to provide information essential to the understanding of his mandamus petition in accordance with Fed. R.App. P. 21. Because Solomon did not show good cause, we deny his motion for reinstatement. We dispense with oral argument because the facts and legal contentions are adequately presented in the materials before the Court and argument would not aid the decisional process.