I've installed flashplugin-nonfree_10.0.1.218+10.0.0.525ubuntu1_i386.deb which I assume is what you are referring to as "beta 2".
The plugin shows in "about:plugins" as File name: /usr/lib/flashplugin-nonfree/libflashplayer.so Shockwave Flash 10.0.0 d525
The problem remains the same though :-(
I've installed nonfree_ 10.0.1. 218+10. 0.0.525ubuntu1_ i386.deb
flashplugin-
which I assume is what you are referring to as "beta 2".
The plugin shows in "about:plugins" as flashplugin- nonfree/ libflashplayer. so
File name: /usr/lib/
Shockwave Flash 10.0.0 d525
The problem remains the same though :-(