Oh that bug, I thought you were talking about a different bug. Here try this 
in kmfoldertree.cpp

void KMFolderTree::resizeEvent(QResizeEvent* e)
{
  KConfig* conf = kapp->config();

  conf->setGroup("Geometry");
  conf->writeEntry(name(), size().width());

-  setColumnWidth( 0, size().width() );
+  setColumnWidth( 0, size().width() - 5 );
  KMFolderTreeInherited::resizeEvent(e);
}

Hopefully it doesn't have any bad side effects.

On Tue, 25 Apr 2000, you wrote:
> I just did an update (with cvsup) of KDE2, and there is no effect.  I get
> the nice bold folder listing when there's new mail, but the scrollbar is
> still there.
>
> -DGW