ah, poorly set up gamma and colours can be common on W-CCFL panels for what I've experienced, sadly. If you calibrated it you may help improve things, certainly on the gamma and brightness front. Worth a try with software at least. with a colorimeter, you could prob adjust all that nicely too:
http://www.tftcentral.co.uk/articles/calibrating.htm
http://www.tftcentral.co.uk/articles/calibrating.htm