Amarok hates me

[Arthur Pemberton]

I just installed Amarok, and gstreamer, fresh, for maybe the 5th time.

WHen I run and try to use amarok, I get this output at the console;

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(process:22508): GStreamer-WARNING **: pads don't accept old caps. We 
assume they did though

(process:22508): GStreamer-WARNING **: pads don't accept old caps. We 
assume they did though

(process:22508): GLib-GObject-WARNING **: invalid cast from 
`GstDecodeBin' to `GstMad'

** ERROR **: file gam_tree.c: line 146 (gam_tree_remove): assertion 
failed: (g_node_n_children(node->node) == 0)
aborting...
end from FAM server connection
Mutex destroy failure: Device or resource busy
ICE default IO error handler doing an exit(), pid = 22517, errno = 0

** ERROR **: file gam_tree.c: line 146 (gam_tree_remove): assertion 
failed: (g_node_n_children(node->node) == 0)
aborting...
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Please advise
Thank you