First off, this only happens when I try to File -> Open something within a program (not just double-clicking on a file like the thread title suggests).
I try to File -> Open something and the program I'm trying to do it in freezes! Such programs include Daemon Tools, ConvertXToDVD, and VLC. Thing is, everything was hanky-dory a week ago. =( I've tried restarting and opening files with no other programs running and that didn't fix anything. Sometimes even when I'm browsing for the file (within the File -> Open window), the program freezes.
I'm ruling out re-downloading the program, because it has worked before, so it's not an installation issue.
Halp. =(