hidecursor message?

Hi,

I am trying to hide my cursor in my jit.window when I enable fullscreen. I've looked through the forums and the solution I've found is the message
;max hidecursor

I tried this, and my cursor disappears when I click on the message, but once I bring the cursor back, the message no longer seems to work. I tried adding a toggle button and a key command, but they don't activate the message after the first try either.

I am so new to max I'm basically a newborn baby ogling at shiny objects... obviously. Can someone help me out here?

Thanks!!