Playback - java runs out of heap space

```
When trying to playback a file this error is thrown:

Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap 
space

For some reason the playback works perfectly if it is tested without GUI on 
it's own but with GUI java runs out of heap space.
```

Original issue reported on code.google.com by `petri.tuononen@gmail.com` on 15 Apr 2011 at 6:33
