I figured out, what happend. I think, there had not been enough free space on the drive. But there was no error report.
First at installation i tried to change the path to another one but when the install starts there occured an error with building the sql-database. After that i tried to change just the drive the same error occured. So i didnīt change the original path anymore and the installtion runs on WITHOUT any error. The only thing i watched that between the installation the system needed more then 600 MB!!! free space at the drive. As i said above the installation closed fine without any error but there was no database or exactly a database with a size of zero bytes. So i tried the install on an other PC with plenty of free space on drive c: and here it works. I think there have not been enough free space on drive c: on the other maschine but unfortunetly there is no way to change the drive or the path and also the software tells you that the installation ends fine.
