Error when starting Guiminer

[Kain]

Code:

Traceback (most recent call last):
  File "guiminer.py", line 2005, in <module>
  File "guiminer.py", line 1995, in run
  File "guiminer.py", line 1429, in __init__
  File "guiminer.py", line 1660, in parse_config
  File "json\__init__.pyo", line 267, in load
  File "json\__init__.pyo", line 307, in loads
  File "json\decoder.pyo", line 319, in decode
  File "json\decoder.pyo", line 338, in raw_decode
ValueError: No JSON object could be decoded

That's what I get in my log file.

[zimpixa]

Just delete your poclbm.ini file. It should be located at

XP
C:\documents and settings\<user>\app data\poclbm
VISTA
C\users\<user>\app data\roaming\poclbm

Had same problem, which solved that way.