yama様　返信有り難うございます。
端末にて確認したところ以下のエラーが見えました。

(deluge)
$ deluge
no existing Deluge session
Starting new Deluge session...
deluge_core; using libtorrent 0.13.0.0. Compiled with NDEBUG.
Applying preferences
Raising error: libtorrent reports this is a duplicate torrent
Unable to add torrent:  'libtorrent reports this is a duplicate torrent'
Raising error: libtorrent reports this is a duplicate torrent
Unable to add torrent:  'libtorrent reports this is a duplicate torrent'
Raising error: libtorrent reports this is a duplicate torrent
Unable to add torrent:  'libtorrent reports this is a duplicate torrent'
Raising error: libtorrent reports this is a duplicate torrent
Scanning plugin dir /usr/share/deluge/plugins
Initialising plugin TorrentNotification
Initialising plugin TorrentCreator
Initialising plugin TorrentFiles
Initialising plugin NetworkGraph
Initialising plugin MoveTorrent
Initialising plugin FlexRSS
Initialising plugin NetworkHealth
Initialising plugin SpeedLimiter
Initialising plugin WebUi
Initialising plugin EventLogging
Initialising plugin BlocklistImport
Initialising plugin TorrentPeers
Initialising plugin WebSeed
Initialising plugin Scheduler
Initialising plugin Search
Initialising plugin DesiredRatio
Applying preferences
Starting DHT...
Traceback (most recent call last):
  File "/usr/bin/deluge", line 133, in <module>
    start_deluge()
  File "/usr/bin/deluge", line 116, in start_deluge
    interface = deluge.interface.DelugeGTK()
  File "/var/lib/python-support/python2.5/deluge/interface.py", line 108, in __init__
    self.apply_prefs()
  File "/var/lib/python-support/python2.5/deluge/interface.py", line 916, in apply_prefs
    self.manager.apply_prefs()
  File "/var/lib/python-support/python2.5/deluge/core.py", line 1164, in apply_prefs
    self.prioritize_files(unique_ID, self.get_priorities(unique_ID))
  File "/var/lib/python-support/python2.5/deluge/core.py", line 814, in prioritize_files
    self.get_core_torrent_state(unique_ID)['num_files'])
AssertionError

(wallpapertray)
$  wallpaper-tray
Segmentation fault

delugeの方はホームの設定ファイルを一掃することで使用可能になりました。
しかし、wallpaperの設定ファイルらしきものを削除してみましたが、相変わらず起動の兆候すらありませんでした。
起動させるためのコマンドが間違っていたのでしょうか?