Since last week I got major problems when I want to open some of my purchased zip files. I don't have it on my other computer (where I use AVG) so I think the problem is caused by Norton Internet security. I have contacted the shop where I bought the zip files and they said nothing was wrong (which was correct because on my other computer it works fine) and that I might use another browser. Well I have Firefox but on Firefox I can't even download this zip files. So I thought that it might have something to do with winzip itself and tried to download a trial version but guess what, I can't download it!!! Does anyone knows what's wrong with Norton and some winzip files?