Good to see ( ahem, or better not), that I'm not alone.

To play arround with mouse settings  might be an option. Have my daubts,  but will give it a try.

Would be happy enough to get back my warning, if this nonsense can't be stopped completely. So it happens not unnoticed at least. I'm getting a tantrum almost every time, when suddenly an important folder has dissapeared and I've to search for it like mad.