YouTube Downloader (YTD) Problem
 

I've used the free version of YTD for years and I'm very happy with it - until I recently downloaded the V. 5.9.10 up-date. Now I can only download one video, all attempts to download a second (or more) videos results in the onscreen message that I have to upgrade to the PRO Version. I can get around this by restarting my computer but when I want to download more than one video this gets very cumbersome. Have any of you IT-savvy guys and gals got any suggestions. I'd prefer to stay with YTD.