I also tried getting a crash report using valgrind and basically came up with the same thing
[brian@localhost ~]$ valgrind --log-file=dolphin dolphin
<unknown program name>(20720)/: Communication problem with "dolphin" , it probably crashed.
Error message was: "org.freedesktop.DBus.Error.NoReply" : " "Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken." "
[brian@localhost ~]$ "/usr/bin/dolphin(20726)" Error in thread 108902496 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/dolphin(20726)" Error in thread 108902496 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/dolphin(20726)" Error in thread 108902496 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/dolphin(20726)" Error in thread 108902496 : "Invalid iterator."
"/usr/bin/dolphin(20726)" Error in thread 108902496 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/dolphin(20726)" Error in thread 108902496 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/dolphin(20726)" Error in thread 108902496 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/dolphin(20726)" Error in thread 108902496 : "Invalid iterator."
"/usr/bin/dolphin(20726)" Error in thread 108902496 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/dolphin(20726)" Error in thread 108902496 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/dolphin(20726)" Error in thread 108902496 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/dolphin(20726)" Error in thread 108902496 : "Invalid iterator."
socket(): Address family not supported by protocol
socket(): Address family not supported by protocol
QLayout: Attempting to add QLayout "" to PhononWidget "", which already has a layout