title: Oracle Protocol Adapter Error
body: <p>HI,
  I've just installed Oracle 10 g Express Edition on to my laptop. The platform is Windows XP SP3. Installation went normally. BUt when I try to get connected to the Oracle database via SqlPlus I get "TNS Protocol adapter error".My laptop is on the network.I'd installed the same database on to a Windows Server 2003 and it works fine. What could the problem be?</p>