  The search for charginos and neutralinos at LEP2 can become problematic if
these particles are almost mass degenerate with the lightest neutralino.
Unfortunately this is the case in the region where these particles are
higgsino-like. We show that, in this region, radiative corrections to the
higgsino mass splittings can be as large as the tree-level values, if the
mixing between the two stop states is large. We also show that the degree of
degeneracy of the higgsinos substantially increases if a large phase is present
in the higgsino mass term $\mu$.
