Aisle-Riot Solitaire starts but not visible

Binary package hint: gnome-games

Under Ubuntu 7.04 Feisty Fawn this solitaire is starting, then the notice of Aisle-Riot Solitaire disappears from Taskbar. Looking in processes using KSysguard: This process used 85 % of CPU. Killing the process freed my CPU from this load, and gives a KNotify Backtrace:
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Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
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[Thread debugging using libthread_db enabled]
[New Thread -1233164592 (LWP 9457)]
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[KCrash handler]
#6 0xb661da3b in KAudioManagerPlay::KAudioManagerPlay ()
   from /usr/lib/libartskde.so.1
#7 0xb66dad03 in KNotify::restartedArtsd () from /usr/lib/kde3/knotify.so
#8 0xb66db01d in KNotify::KNotify () from /usr/lib/kde3/knotify.so
#9 0xb66db85a in kdemain () from /usr/lib/kde3/knotify.so
#10 0x0804e6bf in ?? ()
#11 0x00000001 in ?? ()
#12 0x0807ceb8 in ?? ()
#13 0x00000001 in ?? ()
#14 0x00000000 in ?? ()