im currently using Norton Internet Security 2011
when installed and run 1st update, it works well
but then now i cant open it at all. even right clicking the logo on my windows toolbar(beside clock there) also no effect.
*im using Win7 Ultimate x86, windows fully updated.

should i change to another AV or is there a way to repair it?
p/s: i dun think reinstalling will work, since i installed the same AV on another new formatted laptop and the case is the same.