yea i've never heard of a .net 4.3 either actually but i figured i'd take his word for it. I'll try and inclue the .NET framework installation with my setup program will be easier than making people install it manually. i'll also include the 2012 redistributables.

So you think i should use a Timer and on every timer tick draw everything whilst continuously doing the calculations required??
Or do you mean Update and Draw on one timer tick but use the stopclock just to keep track of the time taken to put into my calculations??