I don't know if I'm the only one to have this problem. The cursor changes at a particular spot on the screen and the only way to get the normal one back is to click on a menu item in the lower left menu. The cursor change happens roughly in the position shown in the screenshot below. It changes into something like this. Its dam annoying sometimes. Especially when I've started laying out a curved road and I've got it how I want but the cursor changes and I cant do the final click.. I have to click the road icon again and loose the road I was laying out. I can't remember if it did it in Platinum.