I've got the extended version with the same problem:
syserr:
0323 23:08:17276 :: Traceback (most recent call last):
0323 23:08:17276 :: File "ui.py", line 1607, in OnMove
0323 23:08:17276 :: File "ui.py", line 88, in __call__
0323 23:08:17276 :: File "ui.py", line 70, in __call__
0323 23:08:17276 :: File "ui.py", line 2797, in OnMove
0323 23:08:17276 :: File "ui.py", line 88, in __call__
0323 23:08:17276 :: File "ui.py", line 70, in __call__
0323 23:08:17276 :: File "ui.py", line 723, in __OnScroll
0323 23:08:17276 :: AttributeError
0323 23:08:17276 :: :
0323 23:08:17276 :: 'NoneType' object has no attribute 'GetPos'
0323 23:08:17276 ::
Any idea?