Help with mouse icon problems?

For some random reason, when I change player icon, and when I hover over a button, the mouse icon changes to roblox default, is there any way I can change that? here is the script that changs the mouse icon:

local player = Game:GetService("Players").LocalPlayer                            -- Gets you the Player
local mouse,texture = player:GetMouse(),"http://www.roblox.com/asset/?id=68308747" --Gets mouse and texture
while wait() do
function mouseIcon(p,m,t)                   -- begins the function
if ( p ~= nil and m ~= nil and t) then -- checks the reactents
m.Icon = t end end                          -- makes the icon what you want/ends function
mouseIcon(player,mouse,texture)             -- activates the function
end