I just reinstalled L4 and instead of downloading all of the many GB of Resources, I used "scan." It worked very well but it took a while until I remembered that, after entering the scan command, L4 must be restarted for it to complete its task. Until then it just sits there. A popup message with instructions to restart would help the memory-challenged.
OT: Thanks to Logos for the recent download of Witsius and Toplady!