Windows XP Service uberSVN Portal won't start

Hi
This is a new installation of the 32 Bit Windows binary uberSVN-1211.exe on Windows XP professional (German version)

Installation was directed to local drive F:
During Installation an error popped up saying could not update path for .... bin. -> I updated the PATH manually to include the requested path after the installation.

Starting the the services from start->ubersvn->servercontrol starts the appache service, but
WANdisco uberSVN Portal hangs at "starting"