  The existence of a fourth fermion generation has mostly been considered as a
source of enhanced Higgs signals with respect to the 3 family Standard Model
predictions. However, a fourth Standard Model family neutrino could cause the
opposite situation. It is shown that relatively light fourth family neutrino
(2m_(nu_(4))<m_(H)) could drastically change the interpretation of the search
results for the Higgs boson, especially if m_(H)<170 GeV.
