Thats okay I've got frustrated for similar reasons in that I keep telling people this fixes the issue and no one tries, appoligies to people who can't/don't have settings in bios.
I didn't have issues with tiger either, only leopard.

I should add its a bit of a bugger for me I usually run my memory oc and it score 166 in xbench now down to 130 ish.
But hell it works

Also add
firefox used to quit on me occasionally doesn't seem to be doing it any more can't swear its related but guessing that it is.