Technik » Music won't play...

Hello,

I just got LMMS on ubuntu 9.10 and it wont play any songs... when i press play the bar just stays in one place and does nothing.
Does anyone know why it is doing this?

Please help.

I didn't find the right solution from the Internet.

References:-
https://lmms.io/forum/viewtopic.php?t=64
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Thanks