Sounds like a Flash issue.
Are all of you running Chrome?
Go into your address bar and type in
and hit enter. It should bring up your Flash plugins, and you will more than likely see two of them (it should say "two files" or something along those lines). There's a plus sign to the far right of that top section...go click it to show details of your Shockwave Flash installs.
Where it says LOCATION, find the Chrome install (one will be for your operating system, the other will be for Chrome...easy to tell from the two). Disable the Chrome install of Flash.
Once you do this, restart your browser and see if you still have the problem.
EDIT: Here's a screenshot of my browser, just in case you're needing help.
(picture is pretty big, so I'll leave the link)