[tryp4vps]

...... Is there something wrong with the mouse perhaps?  Or is it something else?  And what can I do to fix the problem?

Well, I think you should identify if it is a hardware or software issue first.

Try:

Replace your current mouse with another working mouse (HID-compliant preferred).

If it works, then it should be a hardware problem.
If not, it should be a software problem.

OR: Attach your current mouse to another working PC or just another OS (Windows preferred, but for pure testing, an Ubuntu live USB is also fine).

If it works, then it should be a software problem.
If not, it should be a hardware problem.