Kobo Glo not detected

Setup: Brandnew Kobo Glo, self updated to 2.1.5, Calibre 0.9.6 Portable, W7 64 bit

Hi there,

when connecting my new Glo to my Notebook it gets detected by OS and is being attached as Drive G:.
When starting Calibre... after some soconds i see for a very short time "Angeschlossen Kobo Touch" ( which is german and probably means "connected Kobo Touch" ) and then right after this "Angeschlossen Folder Device". There are even being written 2 Files on my Glo, namely "driveinfo.calibre" and "metadata.calibre".

I cannot access my Glo in any case... makes me wonder what this folder device is, preventing me from accessing my Glo. It is exactly the same with my wifes SONY PSR-1T.

I disconnected everything else ( execpt my network cabling ).

any ideas ?

Freddy