Cover flow issue

hello y'all,
a few days ago i upgraded my mac from 10.10.1 to 10.10.2.
and since i noticed cover flow mode being weird: the previews look oversized.

originally i noticed this issue while checking out new music in Spotify
http://monosnap.com/image/HQQ3X4vGcEqttpqQ9l4dzfBfq5lG6W
the album art pictures look enormously big – they don't even fit the screen. reinstalling the app didn't make a difference.

and lated on i realized this issue also regards native cover flow option under the OS.

see screenshot to make your own opinion
http://monosnap.com/image/n5ceJGANkwFDFPGDcsYhW0szzhmQMP

1. firstly, as you can see, the grid is not centered
2. the images are too big – they do not fit into the "cover flow" area anymore. alike album art pics they don't fit the screen.

has anyone had issues alike this?

will appreciate any help and hints.

thanks in advance.