I make no claims either to the accuracy or originality of what follows, it is based upon my readings and personal experience . To obtain this from Photoshop it is essential to have the program properly configured. The on screen instructions should be followed to the letter. Remember this procedure is for Windows 98 since ICM in Widows 95 doesn't work properly.
Most manufacturers have profiles available from their web sites.
If you have a profile and it shows Custom at the Phosphor dialog box then leave it there. After selecting the monitor you will be asked to adjust Contrast and Brightness controls of your monitor. The white outer surround should not be set as bright as Adobe imply in their on screen message. If the screen looks a shade dark at this point don t panic, it will be corrected during the gamma adjustment stage. This is probably the most critical stage of the calibration process since an over bright image here will result in a darker than desired printout and vice versa.