WPF Choppy / Jerky Animation -

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i starting work in wpf , have found animation slow , jerky on pc. running windows xp pro sp3 , have latest gpu drivers (quadro fx 1800), direct x 9 build , .net 3.5 versions.

i @ loss whats going on there 2 other identical pcs in office, 1 of has same problems me, other runs fine.

the code running animation sample code kaxami, running compiled app in vs 2008:

http://pastebin.com/zu7zvcb5 (couldn't xaml in)

so quite @ loss.

anyone have similar problems, or things should compare between working pc , non working pc in terms of software versions?

thanks

wpf single-buffered on xp, may problem. ms wants buy vista or seven.


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