Sorry CLS2086 for my delay... Yes I was trying to do what you advised me. As I said few posts above I instaled other hard disk and FFS on it. But I don't know why,
when I boot MorphOS from this hard disk I can only saw a black screen after the first reboot. The same was when I instaled other version of SFS on this HD. Now I put away this HD.

But I made other tests. I had been installing various versions of SFS on my "normal" HD and I was testing how stable it is. And I must say with some versions of SFS MorphOS seems freezes much more often, with some versions it works more stable...

Now I'm using and testing SFS 1.84 - this version seems to be the best for my machine... MorphOS working now much more stable than with other SFS versions. I will say more after some time, now I must using MorphOS in various situation...