banchee not playing and desktop question D:

Ok so i put a whole bunch of music in banchee some mp3 some acc and it told me i needed the aac mp3 converter jhawnt, i just reinstalled opensuse after trying some other OS’s. But when i hit play nothing happens the name of the song flickers but nothing happens… what do i do now? I tried uninstalling banchee and installing it again but had the same results… any ideas?

second question…
is there a way to set multiple desktop backgrounds on gnome? ive googled this and searched the forums but to no avail

so if someone could tell me or point me in the right direction that would be great!

Install the multi media
Multimedia in One Click