Restoring Leopard

[youradhere4222]

I have someone coming to buy my iMac tomorrow, and I'm trying to reformat it...

I figured putting in the install disc would give me the option to erase the previous partions (Leopard and Vista) then run a new installation.

From what I can tell, it does not. Can someone can tell me how to do this?

Thanks.

 

[stainlessliquid]

utilities>disk utility, then erase them or repartition the drive.