"Streaming" video issues

My issue:
Whenever i try to stream (watch) anything on my laptop the video messes up and freezes while the sound is still fine. Youtube works fine but online streams from say, twitch.tv dont work (among many others, also firefox and chrome give the same result). This is on an i7 macbook pro with a fast internet connection.

I have an imac i5 on the same internet connection and everything works fine. I tried to search for options and simply reinstalling DiVx hasn't helped.

Feedback would be appreciated,
Bas

Have you updated your Adobe Flash Player? Flash 11.1 works well for me on twitch.tv.
Or, other appropriate helpers possibly used on other sites? Perian and Silverlight, etc.

Also do some generic troubleshooting and compare results on speedtest or speakeasy or dslreports between both computers.

I have updated Adobe flash player and silverlight, but the problem persists.

http://www.speedtest.net/result/1615200093.png
Speed test on laptop (wireless) - 58Mb/s D/ 5Mb/s U

On imac (wired) - 59Mb/s D/ 5Mb/s U

No difference in those really, any other ideas?

Generic "possible" fix:
Repair the hard drive -
Restart the Mac from install DVD (or recovery partition in Lion), and instead of Continuing the Install, find Disk Utility in the top Finder menus and use that to repair the hard drive.

If that doesn't help - Create a new User and log in as that user to see if the same thing happens.

Hmmmm making a new account seems to fix it, I guess this is a decent solution (better for me than reinstalling since it would require a lot of effort).

Does this mean its fixable on my other account?

When it works from a different account, that means that a preference file is corrupted in your main user account. So, go to your_user/Library/Preferences, and delete any pref file that seems to relate to internet/safari/firefox (don't worry - these are re-created when you start the program(s) ).

When you delete prefs, you may need to re-create locations in Network prefs, etc.

There seems to be no more Library folder in Lion.

Look up top at the Menu Bar in Finder. Look for Go. Click on Go and hold down the option Key. The Library folder will appear. Try it. it works.

Thanks i got it, would it work if i just delete the whole folder and replace it with the one from my other user?

And "you may need to re-create locations in Network prefs" What exactly does this mean? Does it work automatically when i use programs?

gsahli can you clarify please?

basgen said:

gsahli can you clarify please?

Click to expand...

I think it will be less painful if you just delete pref files that are related to Safari or Firefox or Adobe Flash.
Look for files that are named com.apple.xxx.plist, or com.adobe.flash.xxx.xxx.plist or similar.

But, if you delete everything within the Preferences folder, it should re-create them after restart and application start.

I just emptied my pref file and it seems to have worked without any consequences ty!!!!!!!!!!!!!!!!!!