The S760 comes with a 2 year warranty with samsung, i'd try and send it back, thats what i'm doing with mine that has exactly the same problem.
Dave.
Davegsm82
February 2010
try press on the zoom hard & off the power,
ah bee
December 2009
I am having the same problem with my daughters S760. which was also brought christmas 2008. I have tried everything, and nothing seems to work.
If anyone knows a solution please could you let us know.