sound cuts out when playing internet video

Can you give the output of:

lsb_release -a; uname -a; dpkg -l | grep flash; dpkg -l | grep gnash; dpkg -l | grep swf

Thanks

 I just copied and pasted what I did in the terminal hope this is what you need

lsb_release -a; uname -a; dpkg -l | grep flash; dpkg -l | grep gnash;

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.04
Release: 11.04
Codename: natty
Linux william-MS-7309 2.6.38-10-generic #46-Ubuntu SMP Tue Jun 28 15:07:17 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
ii flashplugin-installer 10.3.181.34ubuntu0.11.04.1 Adobe Flash Player plugin installer
ii flashplugin-nonfree 10.3.181.34ubuntu0.11.04.1 Adobe Flash Player plugin installer (transitional package)
rc browser-plugin-gnash 0.8.8-5ubuntu1 GNU Shockwave Flash (SWF) player - Plugin for Mozilla and derivatives
rc gnash 0.8.8-5ubuntu1 GNU Shockwave Flash (SWF) player
ii gnash-common 0.8.9-1ubuntu1 GNU Shockwave Flash (SWF) player - Common files/libraries
william@william-MS-7309:~$ dpkg -l | grep swf

ok you have TOO MANY flash plugins. This causes a conflict and you get nothing. This will clear you up:

sudo dpkg -P browser-plugin-gnash gnash; sudo apt-get --purge remove flashplugin-installer flashplugin-nonfree gnash-common

You can now add a PPA and get true 64bit flash:

sudo add-apt-repository ppa:sevenmachines/flash; sudo apt-get update && sudo apt-get install flashplugin64-installer

Restart all browsers after the command completes and enjoy flash

now I have no internet sounds at all and the the same intermittent sounds when I try to play music from my computer

Can you rerun the first command I gave and give the output please

Thanks

here's what the same querry for pluggins says now. hope this helps, thanks so much for your time

 sorry, forgot to paste!!!

lsb_release -a; uname -a; dpkg -l | grep flash; dpkg -l | grep gnash;
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.04
Release: 11.04
Codename: natty
Linux william-MS-7309 2.6.38-10-generic #46-Ubuntu SMP Tue Jun 28 15:07:17 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
rc flashplugin-installer 10.3.181.34ubuntu0.11.04.1 Adobe Flash Player plugin installer
ii flashplugin64-installer 11.0.1.60-0ubuntu0~sevenmachines4 Adobe Flash Player plugin 64 bit alpha installer
ii gnash-common 0.8.9-1ubuntu1 GNU Shockwave Flash (SWF) player - Common files/libraries

ok run:

sudo dpkg -P flashplugin-installer; sudo apt-get --purge remove flashplugin64-installer; sudo apt-get clean; sudo apt-get install flashplugin64-installer

Restart all browsers, should be ok

I think that is what I just did but in case I got it wrong here is again.

lsb_release -a; uname -a; dpkg -l | grep flash; dpkg -l | grep gnash; dpkg -l | grep swf
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.04
Release: 11.04
Codename: natty
Linux william-MS-7309 2.6.38-10-generic #46-Ubuntu SMP Tue Jun 28 15:07:17 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
rc flashplugin-installer 10.3.181.34ubuntu0.11.04.1 Adobe Flash Player plugin installer
ii flashplugin64-installer 11.0.1.60-0ubuntu0~sevenmachines4 Adobe Flash Player plugin 64 bit alpha installer
ii gnash-common 0.8.9-1ubuntu1 GNU Shockwave Flash (SWF) player - Common files/libraries

no change. do I have to reboot the computer? I will do that again now

Worth a try

no good

well at least we're back to where I was before. I have sound back. I decided to look at the sound preferences and found that somehow the computer switched from my soundblaster card to the onboard sound. when I switched it the sound came back on. I was already playing a music vid from youtube. So it came back as soon as I clicked it over. Seems to be ok now. thank you soooo much for your help. Is it ok if I write to you directly tomorrow if it comes back I have to go to bed now.

thanks again

If you use a PCI sound card I suggest you disable the onboard soundcard, makes the system simpler