There are some fullscreen applications which hide the default mouse pointer, such as movie players (MPlayerX, VLC), screen sharing client, some games, etc.
On my computer in many of these applications the mouse pointer re-appears after a while, which can be very annoying. This has not been always so, and I am not sure what triggered this behaviour.
Has anyone seem similar behaviour and have you managed to find the cause? Do you have any suggestions on how to track down the problem?
This situation has existed on my computer when I used 10.8 and it continues through 10.9.1. I tried quitting all programs that run in the background, suspecting that one of them is knocking the pointer back into visibility, but this didn't help.