I continue to test Firefox 3.1 with Flash 10 and have found it to *extremely* unstable:
Program received signal SIGSEGV, Segmentation fault.
0xae6b610d in ?? () from /u/firefox_3100b3/firefox/plugins/libflashplayer.so
Frame rates and sound both seem better than 9, but it crashes constantly during testing. Right now there is no way I could deploy the most recent release.
Adobe: It's great that flash is so widely used, people must like using it for content development. But with this much content on the web, you always need to provide a quality player too. I understand that many companies have made cuts in staff, and I would be happy to help debug it for you. Please think about deploying bugzilla for Acrobat Reader and the Flash Player. Please, help us help you!
PS: Already tested swfdec, it's no where near ready for enterprise deployment.
Update: Having some better luck with FF 3.5B4, not crashing as much as B3; but still crashing more than it should.
Update2: Lots of ideas and things to try from the comments. I'm now testing older builds of Flash 10 to see if they provide better stability (current is r22, I have r15 here too). I'm also going to try using Firefox 3.0.X builds and see if that works better too. I had been using the 3.1/3.5 builds with the anticipation that it would be released the same time as this new server goes live. The video card we have is ATI 9250. I'll test over other video cards, and also test with a new version of pulseD.
Update3: OpenSuse 11.1 seems to have some GTK issues that are making the testing process difficult for me. Current plan is to blow the server and load with Fedora Core 10 and see if that works better. OpenSuse/Stable seems to still have some file manager bugs, with the GUI constantly bouncing around the screen and resizing.