I hope you wont be cursing me for these bug reports Renegade 
I was helping someone move their photos to a new computer today. Their older pc has a maze of duplicated folders and files - there seemed to be 10 copies of one batch of images in the one folder 
Everything was already copied onto an external drive.
So I installed your app on the new laptop:
Windows 7 64 bit; classic theme (I believe it's uptodate but dont know if SP1 installed)
I compared the pics on the external drive.
Some minor problems:
1) when I selected the folder in the lower pane, the selected folder in the upper pane was no longer readable - ie, text and highlighted background were both dark blue, if I then clicked on the folder in the upper half, it became readable - but the lower one was then unreadable.
2) when it was checking for duplicates, there was no indication it was working, until I actually clicked (anywhere) on the programme window - then the hour-glass showed.
3) eventually I had to compare the "my pictures" folder with itself. (I used the fast setting.) I'm not sure how many exactly, but there was over two thousand loose images in there and a few folders**. It showed the warning message, I clicked okay, but basically it seized up after that - when I clicked (anywhere) on the window it said no response (or whatever it says - "keine rückmeldung") in the titlebar. So eventually I closed it down - it did close normally, I didnt have to kill it. I tried a few times but it was definitely too much for it...
** I presume contents of subfolders are NOT looked into?
-tomos
Cursing? Heck no! I'm glad you've told me~!
1) when I selected the folder in the lower pane, the selected folder in the upper pane was no longer readable - ie, text and highlighted background were both dark blue, if I then clicked on the folder in the upper half, it became readable - but the lower one was then unreadable.
Is the computer using a theme? Or is the default color scheme changed in Windows?
2) when it was checking for duplicates, there was no indication it was working, until I actually clicked (anywhere) on the programme window - then the hour-glass showed.
That shouldn't happen. The progress bars at the bottom should start.
3) eventually I had to compare the "my pictures" folder with itself. (I used the fast setting.) I'm not sure how many exactly, but there was over two thousand loose images in there and a few folders**. It showed the warning message, I clicked okay, but basically it seized up after that - when I clicked (anywhere) on the window it said no response (or whatever it says - "keine rückmeldung") in the titlebar. So eventually I closed it down - it did close normally, I didnt have to kill it. I tried a few times but it was definitely too much for it...
Can you let me know the computer specs? I was testing on folders of about 1,000 photos that were 4~5 GB, and it worked fine.
Also, can you let me know the rough sizes of the pictures?
Offhand, I don't know what the problem is. There's nothing special going on, and nothing really tricky that could "mess up".
I think it might be the folder browser control... It's based on the stock listview. I probably should replace that with a custom control I have that's designed for very large data sets. Still... 2000 isn't "that" many...
I have some work to get done here, so I'll look into it this evening if I get done in time, or tomorrow, and get back to you.
Thanks for letting me know.