How do I take longer videos with my power shot A 40 digital camera??

I can take up to 13 seconds but I want more.. lost the manual..

I clear everythhing fisrt and then start videos and still only 14 seconds. uhg.

need more memory or you could hook it right into your PC and take video that way. good luck.

May have something to do with the size of your memory card. If it's filled up then it will quit recording.