Problem in funcition COM

A take a sample of function COM. $word = new COM("word.application") or die("Unable to instanciate Word"); print "Loaded Word, version {$word->Version}\n"; $word->Visible = 1; // command that show window $word->Documents->Add(); $word->Selection->TypeText("This is a test..."); $word->Documents[1]->SaveAs("Useless test.doc"); The commands execute, but the window of word don't appears. I make a test with Autocad too, but the window don't appears. When a had a ohter version PHP, don't remember, the window appeared. thanks Luiz Fernando