I am getting a smudge/line on my video with the Canon Powershot S2 when
taking video.  I do not see this with the standard pictures, I do not
think it is on the outside of the lens and it is consistent.  Is this
something that can be cleaned ? on the sensor ?  What is this called to
have this cleaning done ?  About what does this cost to have it
corrected ?

Here is a sample of what I am seeing.
http://www.ise-kobe.com/temp/CanonVideoLineSmudge.gif

Thanks for any help,