TLB fix applied to Phenom 9850BE by AMD Overdrive in XP SP2

[Phenomenalspeed]

Right I feel a bit stupid now.
It was a false alarm. I have edited the thread title to be less sensationalist and so that I don't mislead anyone else.
Sorry.

It turns out it was not the operating system but it was AMD Overdrive 2.1.2. Yes I did have it running at startup.
I uninstalled it as recommended here and removed the directories and the TLB fix is now gone thankfully.
I am astonished by this. It's one thing for a third party operating system to apply the patch but this is AMD's own software. !!
It can't tell the difference between a B3 and a B2 stepping AMD Phenom.

I would still like to use AMD overdrive. Does anyone know how I can configure it so that it doesn't apply the patch/fix??
Thanks.