I used follow code:

<object id="player" width="425" height="344" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ><param name="movie" value="http://www.videobb.com/e/kYkB6iDIepaQ" ></param><param name="allowFullScreen" value="true" ></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.videobb.com/e/kYkB6iDIepaQ" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

How to fix it? Thanks! (atahuapa 3.6.4)

that code, pasted exactly into a post, worked for me. Try disabling all your plugins to see if there is a conflict.