Unfortunately, there is a bug in X Windows that ships with Slackware64 13.1 which can cause programs which expect a certain behavior in X.org to freeze up. It's quite unpleasant. Fortunately, there is a patch that fixes the problem quite nicely. Here's the patch
In case anyone else runs into this, if you are using any derivative of Suse and you can't seem to get your middle mouse button click and drag to work (that would be MB2 drag), you might be encountering the same issue that I did. I couldn'