Comment 4 for bug 231679

Had the same problem:

Package: firefox-3.0
Architecture: amd64
Version: 3.0~b5+nobinonly-0ubuntu1
flashplugin-nonfree_9.0.124.0ubuntu2_amd64

flash samples from eg http://www.macloo.com/examples/flash/index.htm play just fine, but visiting some websites cause flashplayer to stop. Going back to the examples that were working, they now display as blank objects. Restarting firefox and these flash examples work again.

Reverting to using gnash player for now.

reproduce:
1. goto: http://www.unisuper.com.au/investments/investment-performance
2. Select: "All investment options" from <Investment option:>
3. Click go:

When page loads, the flash apears briefly, but page then refreshes and flash plugin object becomes blank.