I found that Songbird 1.2 failed to load on Ubuntu Jaunty(9.04) for some reason. There were multiple copies of the program found in ps output but no luck. I ran the program via terminal to see what’s really causing the issue to find the follwing output.
myself@techfiz:# # ./songbird
*** glibc detected *** ././songbird-bin: free(): invalid pointer: 0xb102e6e0 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6[0xb7e6b604]
/lib/tls/i686/cmov/libc.so.6(cfree+0×96)[0xb7e6d5b6]
/usr/lib/libvisual-0.4.so.0(visual_mem_free+0×21)[0xb0ed0141]
/usr/lib/libvisual-0.4.so.0[0xb0ec7407]
/usr/lib/libvisual-0.4.so.0(visual_plugin_get_list+0×73)[0xb0ec75e3]
/usr/lib/libvisual-0.4.so.0(visual_init+0×291)[0xb0ed6ec1]
/usr/lib/gstreamer-0.10/libgstlibvisual.so[0xb1209273]
/home/techfiz/Songbird/lib/libgstreamer-0.10.so[0xb41bcb2a]
/home/techfiz/Songbird/lib/libgstreamer-0.10.so(gst_plugin_load_file+0x93f)[0xb41bd6f1]
/home/techfiz/Songbird/lib/libgstreamer-0.10.so[0xb41c9ab6]
/home/techfiz/Songbird/lib/libgstreamer-0.10.so(gst_registry_scan_path+0×135)[0xb41c9c5b]
/home/techfiz/Songbird/lib/libgstreamer-0.10.so[0xb417534f]
This issue can be fixed by removing the package libvisual-0.4-plugins. Songbird started singing like a rock star.
So, if you have got a similar issue don’t worry, run the program from console. Identify the issue.. google around and find the solution.. Can’t really paste the URL’s from which I got an hint about the fix (didn’t store it while creating a draft of this post). But its clear in the error log 
So.. Thanks to those who have already blogged about this issue.
