Just wondering, do you have a PC with a touch screen?
I noticed on my surface incredible lag on my mouse and mouse clicks when playing WGT (and a few other games) but everything else with my mouse seemed fine.
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Yeah, I haven't had any problems since upgrading to Windows 8 either, though it wasn't a fresh install either so it maybe just that it's using old drivers, or an older flash still.
it took me a bit to get used to and i'm learning more stuff about it everyday and am really liking it now ... as far as lag you can go in and adjust the speed , but since doing that i can't remember where it was at . i'll go take a look around and see if i can find it again ...
Hi M8,
had same problem its Internet Explorer in Win 8 i changed to Google Chrome browser and the game is working perfect.
Good luck!