So, I've just found out I'm the lucky owner of one of the potentially defective NVIDIA 8600M GT GPU's in my mid-08 MBP.

http://www.theinquirer.net/gb/inquirer/news/2008/07/09/nvidia-g84-g86-bad

So my question to fellow users of Hardware Monitor, or even the developer, is there a way I can use the app to keep a close eye on the GPU to alert me to potential problems developing, given that Apple have only extended the warranty for affected machines by 12 months.

Obviously I can check GPU temp and load, but are there likely to be any telltale patterns over time, for defective chips?

Many thanks in advance.