Steam version of this is pretty good and free, if that would work for you, otherwise I found some code to disable keyboard scroll online, then made a bookmarklet out of it.
If the game developer wants to fix the problem, this code should work
http://stackoverflow.com/questions/8916620/disable...
Otherwise I'd say copy
javascript:void%20function(){window.addEventListener(%22keydown%22,function(e){[32,37,38,39,40].indexOf(e.keyCode)%3E-1%26%26e.preventDefault()},!1)}();
into a bookmarklet on your bookmark toolbar in chrome or whatever browser you use, click on that bookmark, and the game shouldn't scroll at all just using the keyboard.