i am having trouble opening my files when i doudle click, i have to right click to open them. and when i double click i get a message saying .....(this file does not have a program associated with it for preforming this action please install a program or, if one is already installed, create an association in the default programs control panel.) i have tried system restore point, default programs, and factory reset but it is still doing the same. i have scanned with norton,360,2010, and microsoft security essentials to make sure it wasent a virus. i am running on windows 7 64 bit amd athlion tf-20 1gb memory 160 hd.has anyone ideas in what i can do thanks.