> > but did you instruct tlmgr to use the internet instead of the DVD > > and what error does 'tlmgr --help' give? > > -- Yes, I instruct tlmgr to use the internet to update. The error message comes from the Windows system, not from tlmgr. The message means roughly: "the system fails to locate the called drive." Thanks. Fengnan Gao <fnsteed at hotmail.com>