The only serious problem is that Microsoft automatically "protects" downloads by blocking its contents. Instead of informing the user about this, a very wrong message is displayed, when the user opens the downloaded help file (RedHelp.chm). To avoid this you should right-click the zip file and click the unblock button or use an unblocking program to do so.
On some computers you will see instead of for images of which the transparent color is black.
Instead of being transparent, all black pixels are shown as white...
I don't know whether this is a bug in the graphical card, driver, or Windows versions.
I should like to know if this problem occurs frequently, so
if you have this or a similar problem, or if you know what can cause this error, please let me know.
This problem should not occur with the current version anymore.
Wrong colors of cat or other animals, or background shows through animals. Your system probably uses 16-bits colors instead of 24-bits (=true color).
The program is not designed for this mode, but usually the problems are very small. Change to 24-bits mode if your graphical card allows it!
Sometimes a residue of the mouse pointer remains temporarily visible. This can be a matter of timing, so it is difficult to solve. It usually doesn't do any harm.
Report bugs.