The second time it did this, it opened up Microsoft's webpage, at this page: http://oca.microsoft.../en/windiag.asp , which recommends that i download their diagnostic software onto a CD and then run it so it can see if i have any problems with my RAM. i've followed all the directions but am stymied at step 3: it will not write the file windiag to a CD, saying it can't open the selected file for writing. My CD drive works fine, and the CD itself is brand new (I even tried using other brand new ones). the fault seems to be with the Microsoft file? dunno.
But the shutdown of the computer is serious and scary and i'm afraid of losing all my stuff. any suggestions as to how to get this going are much appreciated.