Had that kind of colored light as well... It went away when PS crashed after a while (as it usually does ;-)
About the dark part: starting psclient with the -relight option helps there, only that the relighting of Hydlaa takes hours :/ Also I\'d like to know if the relighted data is overwritten on update... I relighted yesterday, and today the updater is working like hell.
Ah yes, my tip: if the world is just a bit too dark, crank up your monitor gamma :-) On Linux you can use xgamma for that, like \"xgamma -gamma 2\". Helps a lot if you fell down in the Death Realm.
Oliver