Adobe Photoshop 7.0 is not correctly displaying the colours on screen, as there is a purple tint to everything. There are no problems with colour in any other applications such as Fireworks MX. A clue to this problem may be an error that appears when starting Photoshop warning that the current colour profile is not supported. I try to select another profile, but none of the others work.

Photoshop uses ICC (International Color Consortium) profiles for displaying colours on screen. ICC profiles are used to determine how a device reproduces colour. They can be used with either a display device (e.g. monitor), input device (e.g. scanner), or output device (e.g. printer). The main purpose of ICC profiles is to compensate for differences in colour between devices, such as limitations in the amount of colours a monitor can display. When using a correctly calibrated ICC profile, an image you print should look exactly the same as the image on screen. It seems that your monitor’s ICC profile is not correctly calibrated, so all images are being displayed with a purple-tint. To fix this problem, you will need to recalibrate the monitor’s profile. To do this, you can use Adobe Gamma. This is located in the Control Panel. When you open the Adobe Gamma control panel, select ‘Step By Step (Wizard)’ and click ‘Next’. Type a name for the profile in the ‘Description’ field (it may be worthwhile postfixing the name with the date, so you know when the profile was created). Click ‘Next’ and follow the wizard. At the end of the process, you may be interested in using the ‘Before’ and ‘After’ options to see the difference the calibration has made. You have now made your colour profile, which will be stored in C:WindowsSystemColor (Windows 9x, Me); C:WindowsSystem32SpoolDriversColor (Windows XP), or C:WinntSystem32SpoolDriversColor (Windows 2000). Now load Photoshop 7.0 and select this newly created ICC profile and the problem should be solved.