Hi,
i got the same issue here.
The mouse pointer (finger) 'sticks' at the right and bottom border (not at the top or left border).
When pointer is moved to right or bottom border and stays here, it seems, the number of pixel it is virtually moved out of the screen is remebered and one has to go back that many pixels to get the pointer moving again. Pretty annoying.
I run the game inside VirtualBox 7.0.16 on linux mint. Game version is combat 46 full. I also tried latest Widescreen Patch. Widescreen works (a great improvement by the way

- thanks @fois !) but it does not solve the problem.
The hint above to press Ctrl-Tab does unfortunately not solve the problem too. Doing so, i see the windows pointer (white arrow) and clicking into game screen makes it disappear and allows to move the in game pointer again. but the sticky behaviour is still there.
A fix would be really great as i moved away from a 'bare metal' windows. Thanks in advance.
greetings,
lulin