Been at this since 12pm now.
Leopard Verifies the DVD goes to install then I get the following
"the installer could not validate the contents of the "basesystem" package. Contact the software manufacturer for assistance.
Initially I was trying to upgrade - didin't work. Was unable to boot into anything.
Erased HD still didn't work.
Verified disk etc before installing. Machine patched up to date.
Running IMac core 2 duo gb ram