Hi Another question. I have an old iMac with OSX already installed (not sure what version) and am wondering how to upgrade my browser. When I go to firefox or safari and download a browser it is in a .dmg (?) and when I try to open and install it tells me that windows does not know how to handle this type of file. I have internet explorer and it won't even let me install anything newer than like 5.2 or something. Any ideas?