Multiple ring buffer error

Discussion created by krticka_ksgrr on Feb 2, 2011
Latest reply on Mar 5, 2012 by hremas
I am having problems with Multiple Ring Buffer tool in ArcGIS 10. Not working for me, even for my colleagues. I searched forum, but no help solving my case. After selecting input layer, when you start to define distances following error occures:
updateParameters Execution Error:
Runtime error: 'ascii' codec can't decode byte 0xa0 in position 0: ordinal not in range(128)

file with screenshot:

My system info:
Microsoft® Windows Vista�?� Business , Service Pack 2
ArcGIS 10 SP1
Microsoft .NET Framework 3.5 SP1
Python 2.6.5 (Python files and subfolders are in c:\Python26\ArcGIS10.0\)

Thank you for any help.

Ludek Krticka