[Rebirth of Xar]

a bit off topic here but i have a question.. my pshop has been acting up.. the mouse doesnt always work in the picture.. you cant really use any of the tools and the problem is that the program still runs "smoothly".. it used to occur after having been using the program for a few hours but now it is a quick and common occurance.. atleast i can still save then restart the program when it happens but now its getting to be a bit more annoying as it occurs quicker.. anyone know what may be happening?