It works in Safari, not in Firefox. Thanks. Paul Moortgat On 10 Feb 2010, at 23:51, John Baltutis wrote: > On 2/10/10, Paul Moortgat <paul.moortgat at pandora.be> wrote: >> >> The last 2 address gives a 404. >> >> On 10 Feb 2010, at 22:02, John Baltutis wrote: >>> On 2/10/10, Paul Moortgat <paul.moortgat at pandora.be> wrote: >>> => >>>> A friend now told me that it is impossible to install a lower OS >>>> version on a Mac Pro without reseting the SMU. >>>> Does anyone know about? >>> >>> I don't know anything about the SMU (possibly you meant the PMU >>> (<http://support.apple.com/kb/HT1431>) or the SMC >>> (<http://support.apple.com/kb/HT3964>)}, but as far as installing >>> lower OS versions, see <http://support.apple.com/kb/HT2186> and >>> <http://support.apple.com/kb/HT1159>. > > Then, you need to fix your installtion, since all four work properly > from all > links in all the posts I've received.