Looking at the shot, it looks like PJ64 for some reason doesn't like your display settings. I suggest saving your current settings, then changing your theme to the default Windows XP theme, making sure all the tabs including font and font size are set to default settings.
Start up PJ64 and hopefully you should be able to see all the options. Set up your pad normally, then if you wish, go back to your old theme (wouldn't advise it, those font combos look like they will mess stuff up in other places).