Last night I downloaded the Unreal Tournament 2004 MegaPack patch and it appears as a file, not an application. When I double click it, it asks me what application to open it with. I thought maybe this was a bad download, but this morning I downloaded the new Warlords IV patch and the same thing happened. The patch is a file and not an application that asked me what program to open it with. I'm using Windows XP and this has never happened to me before. Any ideas?