Whats wrong with this

[pizzaboy150 1]

Hey guys baffle by this one explanation would help as to why it displays an error?

//height display script

_unit = _this select 0;

_b = 2000;

_string = "";

while {_b > 10} do

{

_b = getPosATL _unit select 2;

_string = format["Altitude - %1", _b];

hint _string;

//sleep 0.2;

};

Thanks

[f2k sel 145]

I just tried it in a game logic and it worked, maybe it's how your calling it.

This is how I tested it, I enabled the sleep to avoid it running too fast.

null=[heli] spawn {  _unit = _this select 0;    _b = 2000;  _string = "";    while {_b > 10} do  {  _b = getPosATL _unit select 2;  _string = format["Altitude - %1", _b];  hint _string;  sleep 0.2;  };};