Dear Greg,
Thanks very much for the quick reply and suggestions. Unfortunately I only had a few minutes to try your suggestions, as my boss kept me busy with other work… At least within this short time I could not get ahead.
At home I tried GH on my native Linux installations, but to my astonishment I ran into other troubles on both systems: exactly like the ones described here, but the solutions described there did not work for me. I did not want open another thread yet, as I still want to try it on my own…
Again many thanks, best,