Laggy Scrolling in Lion with Magic Mouse (Safari)

hi all,

i've searched through forums yet find definitive answer/solution problem, plus, on other threads, people tend deviate away problem. i've seen problem since arrival of lion 10.7.0 doubt of updates have fixed it, i'm on 10.7.3.

in safari, find scrolling quite laggy, on websites such facebook, macforums etc macrumors, telegraph etc seem fine.

else experiencing these problems? i've got 4gb of ram, sufficient?

 

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