I am trying to upgrade from SP3 to SP4.  I have backed up the vault server, archive server, server settings etc.....

I have upgraded SolidWorks to SP4.0, now I am trying to upgrade the PDM Server and I am having trouble, I keep clicking the "change" link and browsing to the install location, but when I click the "back to summary" the location does not seem to stick.  I click install and it ask me to select the install directory which I don't seem to be able to do.