No. An upgrade. But now I found out that I'll have that problem when I use the keys opt-com-open dvd but not when I select the option under the apple (top left corner) Paul Moortgat On 25 Jun 2011, at 02:54, Christopher Collins wrote: > Did you do a clean installation Paul? > > That would be my first thought. > > Backup your data. Wipe the disk. Clean install SL. > > That should clear all of your problems. > > cjc > > On 25/06/2011, at 7:55 AM, Paul Moortgat wrote: > >> Now with the new SL system my Mac Pro wakes up each time I put the Mac to sleep. Shut down is the only solution. Any idea? >> >> Paul Moortgat