Stand to attention Trooper..
I couldn't see your "problem below", but I wonder if your problem is to do with setting your monitor display settings to 24 bit True Color. I remember when I trialed P8 I got this problem, the screen went all blue and all the colours were wrong. If that's your problem, try that. It's quite common I read it all the time on the Painter email lists.
Personally, I loathed P8, don't agree with the "Lets be like PhotoShop" mentality (not that there's anything wrong with PS). I still use P7 and now I know all its foibles we are both very much in love, thankyou.
At ease.
Darth Stu-A-Saurus