[HarryC]

When I try to run calibre 0.7.9 (Windows XP) the flash screen appears for a second but the program doesn't open. calibre.exe can be seen in Task Manager. Running calibre-debug gives the following:

Starting up...
Failed to parse C:\Documents and Settings\Harry Comber\Application Data\calibre\gui.py
Traceback (most recent call last):
File "site-packages\calibre\utils\config.py", line 417, in parse
File "encodings\utf_8.py", line 16, in decode
UnicodeDecodeError: 'utf8' codec can't decode byte 0xa8 in position 5058: unexpected code byte
Traceback (most recent call last):
File "site-packages\calibre\gui2\main.py", line 251, in initialize
File "site-packages\calibre\gui2\main.py", line 231, in initialize_db
File "site-packages\calibre\gui2\main.py", line 200, in initialize_db_stage2
File "site-packages\calibre\gui2\main.py", line 155, in start_gui
File "site-packages\calibre\gui2\ui.py", line 121, in initialize
File "site-packages\calibre\gui2\layout.py", line 328, in __init__
File "site-packages\calibre\gui2\layout.py", line 502, in setup_actions
File "site-packages\calibre\gui2\device.py", line 677, in create_device_menu
File "site-packages\calibre\gui2\device.py", line 502, in __init__
File "site-packages\calibre\utils\config.py", line 490, in __setitem__
File "site-packages\calibre\utils\config.py", line 501, in set
File "site-packages\calibre\utils\config.py", line 442, in set
File "site-packages\calibre\utils\config.py", line 330, in parse_string
File "encodings\utf_8.py", line 16, in decode
UnicodeDecodeError: 'utf8' codec can't decode byte 0xa8 in position 5058: unexpected code byte
Traceback (most recent call last):
File "site-packages\calibre\gui2\actions.py", line 990, in ownload_scheduled_
recipe
File "site-packages\calibre\gui2\tools.py", line 224, in fetch_scheduled_recip
e
KeyError: 'keep_ligatures'
Traceback (most recent call last):
File "site-packages\calibre\gui2\actions.py", line 990, in download_scheduled_recipe
File "site-packages\calibre\gui2\tools.py", line 224, in fetch_scheduled_recipe
KeyError: 'keep_ligatures'
Traceback (most recent call last):
File "site-packages\calibre\gui2\actions.py", line 990, in download_scheduled_
recipe
File "site-packages\calibre\gui2\tools.py", line 224, in fetch_scheduled_recip
e
KeyError: 'keep_ligatures'
Traceback (most recent call last):
File "site-packages\calibre\gui2\actions.py", line 990, in download_scheduled_
recipe
File "site-packages\calibre\gui2\tools.py", line 224, in fetch_scheduled_recip
e
KeyError: 'keep_ligatures'
Traceback (most recent call last):
File "site-packages\calibre\gui2\actions.py", line 990, in download_scheduled_
recipe
File "site-packages\calibre\gui2\tools.py", line 224, in fetch_scheduled_recip
e
KeyError: 'keep_ligatures'