--- urlgrabber/grabber.py~	2006-02-22 13:26:46.000000000 -0500
+++ urlgrabber/grabber.py	2006-03-14 14:17:59.000000000 -0500
@@ -1140,6 +1140,8 @@
                 raise URLGrabError(4, _('Socket Error: %s') % (e, ))
             except TimeoutError, e:
                 raise URLGrabError(12, _('Timeout: %s') % (e, ))
+            except IOError, e:
+                raise URLGrabError(4, _('IOError: %s') %(e,))
             newsize = len(new)
             if not newsize: break # no more to read