the same problem still, this time i tried to reinstall it from app manager,
the ouput of your command from xterminal:
~ $ /opt/taskpoach/taskpoach.py
Traceback (most recent call last):
File "/opt/taskpoach/taskpoach.py", line 33, in <module>
from ui.help import HelpWindow
File "/opt/taskpoach/ui/help.py", line 26, in <module>
from Ui_help import Ui_HelpWindow
File "/opt/taskpoach/ui/Ui_help.py", line 39, in <module>
from PyQt4 import QtWebKit
ImportError: cannot import name QtWebKit