I'm currently using TeXShop 2.43 , and some bug is driving me crazy.
After typing cmd+F in order to find a particular word , I can't close the searching window , it always reappear ! I clicked on the cross , I used cmd+W , I searched all the menus in order to close this window but it always reappears. The only solution is to relaunch TexShop. It is kind of annoying so I hope you will be able to help me... Is it a glitch or am I doing something wrong ?