Comment 6 for bug 764620

I've had this problem since at least 10.04, it continues with latest version of 11.04. It's not specific to Firefox, I've got it in Chromium as well. I've seen other threads mention that Chrome packages its own version of the flashplugin which often fixes this issue.

Nvidia 8600GT
Driver version 270.41.06-0ubuntu1

Flashplugin version 10.3.181.14ubuntu0.11.04.1
(same issue with both adobe-flashplugin and flashplugin-installer packages)

Firefox 3 and also with Firefox 4, (package 4.0.1+build1+nobinonly-0ubuntu0.11.04.3).
Problem also in Chromium (package 11.0.696.71~r86024-0ubuntu0.11.04.1)

Other reports of this problem:
https://bbs.archlinux.org/viewtopic.php?id=113368
http://boardreader.com/thread/New_fl...3fab.html?o=10
http://www.nvnews.net/vbulletin/showthread.php?t=159779