I tried to make a copy of my hard drive with Acrosnis True Image and for some reason it failed. Since then (it might a coincidence) but when I turn on my computer I get the following message.
"Sec slave hard disk S.M.A.R.T, satus Bad, Back up and replace
Press F1 to resume".
then I press F1 and everything looks normal.
I have acces to my secondary slave hard drive without problems.
Thanks