I have noticed that if Fsubscript plugin is running, i can't scroll down the results in Process Kill, Network connections, or KlipKeeper plugins.
For example, I activate the ProcessKill plugin by typing in "kill", the list of running processes shows up, and when I press down to pick a result I get this:
Note that if I just press enter in the input text box (without pressing down to pick the results) the first result activates normally. I can even execute other results by adding text to filter them out until the desired one gets to the top so I can execute it with just pressing enter. If I disable Fsubscript everything works as expected, and with Fsubscript active there is no problem with my other list displaying plugins (Calendar and Clipboard).