Same problem here. I get an empty grey box.
$ uname -a Linux mbana-desktop 2.6.27-7-generic #1 SMP Fri Oct 24 06:40:41 UTC 2008 x86_64 GNU/Linux
~$ apt-cache show firefox | grep Version Version: 3.0.3+nobinonly-0ubuntu2
$ apt-cache show flashplugin-nonfree | grep Version Version: 10.0.12.36ubuntu1
$ lspci | grep -i NVidia 01:00.0 VGA compatible controller: nVidia Corporation GeForce 8800 GTS 512 (rev a2)
Same problem here. I get an empty grey box.
$ uname -a
Linux mbana-desktop 2.6.27-7-generic #1 SMP Fri Oct 24 06:40:41 UTC 2008 x86_64 GNU/Linux
~$ apt-cache show firefox | grep Version -0ubuntu2
Version: 3.0.3+nobinonly
$ apt-cache show flashplugin-nonfree | grep Version
Version: 10.0.12.36ubuntu1
$ lspci | grep -i NVidia
01:00.0 VGA compatible controller: nVidia Corporation GeForce 8800 GTS 512 (rev a2)