Most legal software will pop this sort of question every now and then (unless they have some sort of hardware unblocker/ key)... if that's the case (I know it is ;) ) just do as told! If that's not the case, like said also above something disrupted the crack .. so now u need 2 do this 2 validate it again!

2 me this is one of the most annoying things... maybe the future will bring us some sort of blue tooth box where u plug all yer keys (even if they are a simple downloadable routine)... I mean it's not like I'm gonna carry all my install Cds while travelling with my laptop!!!

Z