I use SP 2001 SP2 and often when I try to access to some folders in the "document library" web part I find error like this :
"Script Execution Error: Reason: The following tags were not closed: a:multistatus, a:response, aropstat, arop, f:Title."
"Script Execution Error: Reason: The following tags were not closed: a:multistatus, a:response, aropstat, arop, f:Title."