Computer cursor keeps appearing

Today wind told me about a weird bug he had. His computer cursor kept appearing in nexuiz making it so hard for him to aim. The weird thing is that its not always there and it just appears every now and then. He doesn't play in full screen and uses a mac computer, do any of you guys have had this before? If yes how did you fix it?

vega

I had it some time when I switch from no full screen to full screen, I just re switch and all become good

Abc

Well he has it also in no full screen :/ Changing his resolution helped it for some time. What i think solves it completely is changing your desktop resolution to your nexuiz resolution.

vega

SOLVED