I've been experiencing sluggish performance for ages on my MBP running Lion, 
particularly when it came to using Spotlight, or the search facility within 
Mail.

Then I came across the Repair User Permissions process detailed at:

http://osxdaily.com/2011/11/15/repair-user-permissions-in-mac-os-x-lion

After following this process, I'm ecstatic with the difference in performance. 
Chalk & cheese. I mention it here in case anybody else has a sluggish Mac for 
no particularly good reason.

Steven
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