If you have the new ActiveX update for Internet Explorer installed, you will have to click on the player on the profile page to activate the player. You should see something like this when you mouse over a Stickam Player in IE:

We are modifying our code so you don’t have to do this on stickam.com but for any Stickam player on an external site, you will still need to click to activate the player. Your best bet to avoid this issue with all ActiveX media (this update effects all websites, not just Stickam) is to avoid IE entirely. Might I suggest Firefox...

Read more about the ActiveX changes at eweek and Slashdot.