I was playing a bit with settings:
default thunderbird skin shows no titlebar skin or background behind menus so there is no buttons to _ - X, when I go to skins and select alternate (silvermall skin) and restart it the skining is ok. After closeing and reopening the issue is back but with double restart from skin window inside the thunderbird (first default than back to silvermall skin) it works until I close the app.
I switched off miranda skins (inside it) and putted all in default but there is still no skinning on it.
Skype just doesn't want to work, only when I reinstall it works until I close - reopen it again.
And MPClassic still whatever I try it's stuck with default classic.
I don't intend to reinstall windows since I have tons of applications and it's a drag to set everything back to working enviroment....