I downloaded the Jnes 0.50 Beta version and download WinZip, butevery time I try to download a ROM, I get an error message that reads "The Compressed (zipped) Folder is invalid or corrupeted". Then when I click it again get a window that appears to have the file in it, but I cant click it, move it, or do anything to it. Why does it do this and how do fix it?