Did you have to do any special color tweaking on the monitor itself? or Download any special color calibration software?
I think I did a little bit, mostly adjusting brightness and contrast. I may have edited specific color channels but I think I didn't have to. I used some basic apps/websites to show colors and calibration patterns, and followed adjustment advice.
On the PA series for sure, there are certain modes and editing options that are either enabled or not enabled depending on certain selections. Saturation and something else aren't available in Standard Mode (may be available in sRGB mode), but some things aren't editable in sRGB mode iirc. I remember playing around with different modes, and while being able to edit everything was great, it seemed the best "starting palette", for my monitors, was found in the Standard Mode, and editing what I could there. Some was also mostly preference, not impacting the overall calibration that much if at all.
I remember not liking the sRGB's starting point, and being unable to tweak it to a point I found acceptable. I think white in that mode seemed oddly blue, but could have just been quite cold compared to what I suspect might be a warm white by default.
I am slightly colorblind (red/green), so... calibration shouldn't be left to my eyes, but they do have a vote dammit. But it would make sense for a cold white to stand out to my eyes sooner in the spectrum, whereas warm whites will need to be quite warm before my eyes could probably recognize it as having passed neutral balance.
I'm no graphic professional, so I'm not worried about print matching or perfect publishing.
So with that said, I myself am happy with the color on these, and the calibration options were pleasing. I'm not sure how much is removed, if anything, from the PB238Q's OSD menu. If you are the type that will use calibration hardware, I'm probably the last person you should seek calibration opinions from. I appreciate the art of calibration and even had my TV professionally calibrated (which was ridiculous considering I had it in my dorm room and it was a 32" 720p LCD, and more ridiculous was at the time such models, including mine, cost around the $1000 mark. 2006 was not a good year to enter into the buyers market, I have come to realize ), but I cannot guarantee results based on eyes alone - I'd need quality eyes, or unbiased and perfect hardware eyes, to spit out results to me.