I sent this:


Ok, your problem is a simple fix.
When you enter the loop, you don't have a way of exiting it. you can fix this by having your color change in a timer.


Example.


SetTimer,Change_Colour,1000


1:=1
Color_1:=Red
Color_2:=Green
Color_3:=Blue


return


Color_Radios:
Gui,submit,nohide
return


Change_Color:
i++
if(i>=4)
{
i:=1
}
if(Radio1=1)
{
Gui,Color,Red
}
else if(Radio2=1)
{
Gui,Color,Blue
}
else if(Radio3=1)
{
Gui,Color,% Color_%i%
}
return










Let me know if this helps