It has worked well on pretty much a daily basis for 7 years, so I can't complain too much.
I think you are right about it being time to replace. I was leaning that way already. I was just questioning the symptom. I have seen a couple of instability failures, but never one that required me to go through so many hoops.
I was also thinking about the CMOS battery. I picked one up the other day and was planning to replace.
Possibly one issue triggering another weak link?
That rug really tied the room together!