When displaying trees for the 4 views , the trees doesn't react :
Clicking on any of the 4 tree doesn't lead to the folders on the right side of the pane related to the trees.
I went to your site and downloaded a former version : Q-Dir_Portable_Unicode.zip.
Renamed the Q-Dir.exe (version 3.73) on my hard disk to Q-Dir.exeaaaa, to desactive it but keep it, in case I need it back.
Extracted Q-Dir.exe to the folder on my hard disk where the 3.73 version is.
Opened Q-Dir as usual from the shortcut I normaly use to do it.
It opened and the 4 trees worked normaly, reacting when they were clicked and opening folders on the right panes.
Might be a small (they always are small!!!) bug or even bugs.
Thank you for your work.
PS- Mmmm, I just had a flash :
I have just seen that the version I downloaded, the Q-Dir_Portable_Unicode.zip, is 3.73 too.
But it's an unicode version, and my xp is a french version (I know : nobody's perfect;-)), you know with this kind of signs :é è à û ü, etc...
So, I thought that may be, the bugs may comes from there ?
I use Q-Dir in french language (it is automatically selected when opening).
That's all, for now.
All the best.
4 trees worked normaly
possibility of folder comparaisons
(e: this file is or not in one or other folder by 2 differents color) only name comparaison
(file size comparaison would be done later ! file by file probably)
Will try in one of the next version to integrate.