LWJGL 2.9.3 + Slick2D

I am using the default mouse, I have not done anything else in the program. The mouse cursor is always has been working.
Now some user cannot see the cursor.
For me I can see it, it is the default windows cursor (arrow). Is it called the hardware cursor?
Should I make my own (software) cursor  and render it at the position of the system cursor?