[billyo]

if you're having problem with v4.22, try going back to an older version, 4.20 maybe,and if it happens again, then it's your laptop..and also if you have any ext. hardware hooked-up to your laptop( ext. hhd. ext. monitor, etc. ) try unplugging them and run hoster by itself for a while, then start plugging each one back, and see what happens..just a suggestion..