I can't put a whole album to the playlist: neither with drag & drop nor by clicking right and selecting add to playlist.

What happens? Do you ever see the drag box with the album name?
Try clicking the > at the bottom of the playlist. The album should be at the end.

Hi,

No. Neither drag/drop or right click does not work. With drag/drop I only slide the list to the left and with right click, I can only select one song instead of the entire album. When I click add album to playlist, it then places only the first song (in alphabetical order from the artist; a artist that begins with "A" will be put in the playlist). This is with all albums.

Also, when I click on the album cover in the list on the right, it once again gives me only the first artist that begins with an "A", instead of the entire album to choose from.

Hi lonnebol, found a good work around on this one yet?

Sound like maybe your Compilation check box is not set for the album.
right-click the 'now playing cover image' or a songlist song from the album ->
select Edit from the meny and then check Compilation in the Song Editor