I am a newbie to this discussion and would like to get some help. I recently experienced the same problem as said in this thread.
My Mac is mid 2009 model with OS X 10.5.8, 4GB RAM, CPU 2.2GHz dua core)
I recently stalled up often when I had MS. word, firefox and others run at the same time. After each move (new page on firefox or typing some words) it stalled there for quite sometimes, a few second at least, and occasionally it stood till then only way to get it run again is to turn it off with the power button held down
what I did to it is:
I checked the Active monitor and found that the CPU usage and RAM were very ok (around 15% for CPU and 20% for RAM when I run severy applications) so my conclusion was: CPU and RAM were OK.
I started to deleted several applications which I rarely use, hoping that it helped. it seemed that after I did, it peformed better but still experiencing stalling for sometimes. the PROBEM did not go away
I run the solution as suggested in this thread , then it did not work . One thing I noted in the ACtive monitor was that one process called "HP product research" appeared in RED text (all other processess are normally black). I do not know what it was or
so any suggestion differently would be appreciated.