GUIminer won't start it gives an error

[dudextreme19]

This is wat i get in the logfile guiminer.exe

ERROR:root:Exception:
Traceback (most recent call last):
  File "guiminer.py", line 2478, in run
  File "guiminer.py", line 1782, in __init__
  File "guiminer.py", line 2075, in parse_config
  File "guiminer.py", line 2006, in get_storage_location
  File "os.pyo", line 423, in __getitem__
KeyError: 'APPDATA'

Iam a beginner and the other question is that i have an ati hd 6870.
Is it profitable for me to mine?

[clicksmoney]

Iam a beginner and the other question is that i have an ati hd 6870.
Is it profitable for me to mine?

Can't say with certainty you need o do your own calculations including power costs, How long you break even for is a consideration too.

[dudextreme19]

Owke but i have read that i must set the location for the settings.
But how do i do that?

[dudextreme19]

no one?