[Zope] i can not see some graphic icons..

hi all, after starting Zope, everything seems to be ok, but i can not see some graphic icons in the web page. The Traceback after starting zope is the following one: Traceback (innermost last): File "/home/pecos/zope/Zope-2.2.2-solaris-2.6-sparc/z2.py", line 609, in ? logger_object=lg) File "/home/pecos/zope/Zope-2.2.2-solaris-2.6-sparc/ZServer/medusa/http_server.py", line 541, in __init__ self.bind ((ip, port)) File "/home/pecos/zope/Zope-2.2.2-solaris-2.6-sparc/ZServer/medusa/asyncore.py", line 242, in bind return self.socket.bind (addr) socket.error: (125, 'Address already in use') how can i solve it ? thanks in advance Gaby