I had it good as you said for a let say almost steady line and and overhere (dutch time) at about 9:00 it jumped to a spike line as if i put it back on us server. I was not at home at that time, but if you say you did nothing as well... then i wonder what it was.
I didn't get it back as calm as it had become before 9:00.
The difficultys i had set after you told me and adjusted to the eu server, then there was that jump that i think 5 miners or so did at about 9:00 clock.. Maybey i or we will find out some day

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Thanx for the info.