CS2 color picker changes on it's own

CS2 Adobe color picker keeps changing on it's own.

Any idea's what to do to stop this from happening? The Windows color picker works fine, it's just the Adobe picker changing.

I did find an old 2005 thread that said he found the problem was "Hue radio button not checked" but he found that answer on another forum. Can't find that button to check.,

Found the reason. So easy to fix.

Open the color picker. On the right side is a list of letters and a box for values for each.
Put a tick in the H radio button and all goes back to normal.