I was putting a sound card and fan controller into my pci slots in the back of my computer when I found that I lost a screw. It wasn't on the floor or in the area where I was working. I then shook my computer around a little but I didn't hear anything and nothing fell out. I examined all the hardware and I couldn't find the screw. Is there a chance that the screw is lodged somewhere in my computer where I can't see it? Are there any dire consequences that may result? Lol, I'm hella nervous because I know screws just don't disappear but I REALLY cannot find this one.