The flashing is potentially related to bug #428396 . Enabling KMS
(WARNING: may not work for most graphics cards) seems to affect the
issue somewhat...
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GnomeTris under Ubuntu 9.10 is very slow and lags on Graphics
https://bugs.launchpad.net/bugs/456104
You received this bug notification
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/34024046/Dependencies.txt
** Attachment added: XsessionErrors.txt
http://launchpadlibrarian.net/34024047/XsessionErrors.txt
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GnomeTris under Ubuntu 9.10 is very slow and lags on Graphics