I have a 64bit Vista Machine and use Photoshop. The Natural Colour Pro I was given with my Monitor was not suitable for Vista 64bit and will not load up on my machine even though I have installed it. I keep getting messages re.Gamma, re-running my software which I have re-installed but to no avail- Also now unable to paint, fill etc with white when I use Photoshop or Elements. Please can you help?