New hard disc - and forgot to deactivate Studio licence on the old one

Last week I set up my laptop from scratch (including a new hard disc); however, I forgot to deactivate the Studio 2011 license I was using on it. Now I can't activate my new Studio installation since the additional licence is officially still in use, but I obviously can't access the old copy of Studio any more either. Is there any way to deactivate it "remotely" so I can activate my new installation?