I did an upgrade to 10.10 early this month from 10.04  (which I&#39;ve used since April) using the alternate amd64 cd. Running on HP 6715b.<div><br></div><div>IMHO 10.10 is unstable...saw my first freeze there after a day of use! The first thing you notice is increased CPU usage even with no user programs running - this is also on the net so I guess I&#39;m not the only observer. Word of advice: test on a box before you &#39;jump ship&#39;. Maybe its my hardware platform, but I formatted and went back to 10.04 and my machine is a happy penguin.</div>