i'm using crystal report 13 and vs2010 in 32 bit OS

reports are working fine but when i click to next page
or zoom or find a word then
the allinOne.jsdynamic file opens
and shows the below error..

Microsoft JScript runtime error: 'children.length' is null or not an object
and the following is error in file

A=G.children.length; it is showing A is undefined.

what to do .. i dont know i'm confused..