The error appears to be from the Putty client running on Windows.
What version of Windows? Having a quick look at the putty site there is a new version 0.62 available for download, it might be worth giving that a try.http://www.chiark.greenend.org.uk/
Hi,, the version is windows xp sp3. RAM is 3 GB.
I did some disk cleaning, after that he issue is not that frequent . Though
its still there