David, this might be worth a look http://support.apple.com/kb/DL947
If still no joy try opening the Activity Monitor in the Utilities Folder. Set it to show all processes and sort the data by %CPU by clicking on that column. When the stall happens look at the monitor and see what is using the CPU. On 29/03/2010, at 2:42 PM, David Noel wrote: > > -- Hi All, can anybody throw any light on the following? > > -- We lost power during the Great Hailstorm of March 22, and were off > for 4 days. When power was restored, I was pleased that my Intel iMac > (on 10.6.2) was able to power up again apparently normally. But since > then, with all applications (eg writing this email), for no obvious > reason the computer has at times gone into a 'pause mode'. > > -- With this, during actions such as scrolling along a movie or > switching to another application, the screen more or less freezes and > the coloured wheel appears. After about 24 seconds the wheel > disappears and normal service is resumed. It's bearable but annoying, > without apparent ill effects in the long run, sometimes happening > every minute or so, sometimes going half an hour or more before > showing up. > > -- I have the widget which shows CPU, disk etc usage and can't see > anything special with it (though invoking widgets during a 'pause' > usually shows everything without data, and sometimes the CPU widget > doesn't appear at all). > > -- Any thoughts, please? > > Cheers -- > > David Noel > 2010 Mar 29 > > > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Unsubscribe - <mailto:[email protected]> > -- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Unsubscribe - <mailto:[email protected]>

