This is in 1.7.6.
1. Open some files in HxD
2. Behind HxD's back kill/rename a file that is open from step 1
3. Have another application have focus but have HxD's window's [X] button visible. (I used Windows Explorer open to a folder)
4. Click HxD's window's [X] button without first making HxD's window have focus
5. HxD and the other app will thrash for focus and whenever HxD has focus the system will "ding" like a message box has popped up.
CPU on a 3GHz P4 will go between 30% and 40% while this is happening according to task manager.
Fixed: HxD: App can focus thrash when quitting
Re: Fixed: HxD: App can focus thrash when quitting
Fixed in version 1.7.6.4 (will be published today)
Re: Fixed: HxD: App can focus thrash when quitting
Ok, finally uploaded the new version (1.7.6.4).