How do you fix color issues with monitor display and Photoshop?

Ok so recently my monitor started displaying all my colors in Adobe Photoshop kind of brownish, especially color black. It's like dark brown. This is happening only in Photoshop, all other programs and internet browsers are displaying black as black. How do I fix this, anyone know? I heard something about color callibrating softwares, has anyone tried these? Do they work? And is this what I would need to fix my issue, or something else? Because it seems that it's an issue with Photoshop alone, not my monitor. Thanks everyone!!! :)

*** I have Photoshop CS2, Gateway PC, Samsung SynchMaster 243T 24'' widescreen monitor

How do you fix color issues with monitor display and Photoshop?software

in the Edit menu - there is color settings that u can adjust - just note/write down what changes u adjust and if it is wrong u can reset it...unless u can tell what has happened and from what described, i can't tell what has actually happened so i can't tell u how to fix it.