PC is still giving me grief!

I am still having difficulty with my pc! I am trying to ldo as much as I can before it acts up and I have to reboot! It now erased an address of a friend and put a old non-working one back on!  I suppose it's laughing at me cause it wont let me add the good one on or delete the old one that has nothing to do with the good one ! Well other than that I'm doing pretty good so no worries here!May all my friends and everyone here at DS have a happy,safe and painless week! : )