Thank you all.
Well i am really sorry, and i wondered why anyone didnt told me already about the contrast.My screen is a CRT 14 inches since 1998 and i hope ill soon make a whole upgrade to my pc.Its contrast and colors are screwed(keep in mind that i punch it to recover red from RGB)
Anyway enough with the excuses, i keep in mind what you told jak.
And of course the first tablet sketch will be dedicated to you pal
see ya all and thnx for support(gotta study for exams)