Hi - I have a new Toshiba laptop with Windows 7. I have only ever used XP, so 7 is a bit of a mystery. Everything on my laptop has a blue cast. When I go into Colour Calibration I can get the colour as I want it, but as soon as I restart the computer the colour defaults back to the original colours.
May be your graphics card or driver
Type device manager in search
Make sure you have the most up to date card and driver
Look for any yellow markers in the Device Manager warning of corrupt cards.