how do i put my iMac 27" back to factory setting with no disk
hi, i bought a imac 27" from the apple store yesterday, i already have a imac 24", when starting up the imac for the first time it asked me if i wanted to use migration assistant i said yes and restored my new imac from time capsule that i used for the 24", everything went fine, then on second thoughts i,m wanting to set my new imac 27" as a new computer, but it came with no install disks, ive looked in the electronic booklet and it says "go into utilites and select reinstall osx" ive been in utilites but this is not there, ive used software update and downloaded all the updates
any help is appreiciated
thanks kev
iMac, Mac OS X (10.7.2)