Jenny, I ordered the cd from them. I probably should have at least tried to download it myself but I got nervous looking at "iso files" "extract to bootable cd", etc. Anyway, once it comes I'll test-out the memory and see what happens. It probably won't hurt to have that on hand as a utility anyway.
Edit: I just checked the power settings in my control panel. On the first screen the setting for hybernate was never as were all the other settings. On another tab there was a check block for allowing hybernation. It had been checked to allow. I unchecked it and hit apply. Don't know if that will make any difference.
Edit: So far, so good. Machine has not turned itself off yet. I'll watch it for a few days (only turning it off at night) and see what happens.