nortons internet security refuses to finish full scan

trouble started with nortons internet security 2008. would scan a portion of my files, and then hang.

tried to remove temp files, scan in safge mode, etc etc etc.

no exculsions.  and i let it scan within compressed files.

it just didn't

after many times with norton personell, they upgraded me to nortons internet security 2009.

but the same thing is happeneing.

as of now, i have been on line with various techs and supervisors since 6 am (it is now1:30 opm. they are finding the same thing- it scans up to a point, and then hangs.

i noticed that someone posted a similar situation in december which very much resembles what i am going thru right now.

is there any solutioln for this- or would it be better to go with another company.

i am willing to cut my losses and go.