http://bugs.winehq.org/show_bug.cgi?id=25533
--- Comment #7 from Alexey Loukianov mooroon2@mail.ru 2010-12-22 22:13:21 CST --- I had installed latest flashplayer using winetricks to give your advice a try. Unfortunately browsers (both wine iexplorer and win32 version of Mozilla Firefox) also hanged hard just at the moment any flash content appears on page.
I had managed to turn the flashplayer hardware acceleration off by transfering appropriate settings file from a Windows XP installation (I have a notebook with Windows XP Home installed + Firefox + Adobe FlashPlayer 10.1). At first I disabled hardware acceleration in browser on Windows XP machine and then copied the file "%USERPROFILE%/Application Data/Macromedia/Flash Player/macromedia.com/support/flashplayer/sys/settings.sol" into my wineprefix. It helped to workaround the problem and made the game playable.
This workaround isn't a good one for wine users as it require working copy of Windows XP to do a fix. Hope wine would be fixed so recent versions of Adobe Flash Player would work correctly.