I installed Paint.net (free) about 2 years ago. Not sure exactly which version. It had been working ok but suddenly now when I double click on the icon on my desktop, it won't respond. I scanned it with the anti-virus installed in my laptop, it showed no threats. Yet the icon won't open. Not just that, but when I try to open it by double clicking, it freezes the computer and I need to restart. Would it be advisable to remove and re-install paint.net?