ciggwin, how many cores/threads do you have crunching? The run time is based on per thread. So a single core/threaded CPU will only get 1 day of run time per day. A hyper threaded single core CPU will get 2 days/day of runtime. A dual core non-Hyper Threaded will get 2 days/day. My AMD 32 core dual 6344 setup will get 32 days of run time per day if left on 24/7. So, if I just ran my 32 core system for 104 days, I would tally 3328 days of run time. That would be just over 9 years run time.
So, are you saying you have only ran a single core for 104 days or have you had more than a single core active?