Something really weird is happening on just one of my computers (Win 7 Pro x64, more specs available if needed): I tried to install BD Total Security on it (via the trial downloader) and it didn't work. It got most of the way through the installation and after I hit the "Finish" button it started going through the expected motions ("Installing drivers", "Disabling Window Firewall", etc) and then simply disappears. No computer usage, no icon by the Task Bar, and the same thing when I restart. In addition, the Start menu folder is empty (both before and after restart) and the entry in the Control Panel->Programs and Features (the one that lets you uninstall it) doesn't have the BD icon.
Another odd thing is that I tried it a couple times before and, during the one where I was watching for strange happenings, it disappeared in the middle of the installation as well. This one was on the screen before you can select "Finish."
Finally, I have two other computers already running it, the first being another Win 7 Pro x64 machine (laptop, whereas the one with the problem is a desktop) and the second a Windows XP (x86) machine.
Any and all help would be much appreciated! Thanks in advance!