As a counter-anecdote, I've been running 10.9.x on my laptop since the first beta and haven't had a grey screen since beta 2 came out. On the other hand, my 1 y

As a counter-anecdote, I've been running 10.9.x on my laptop since the first beta and haven't had a grey screen since beta 2 came out. On the other hand, my 1 year old Windows desktop running Windows 7 has had 4 BSODs this year.