Samsung laptop randomly shuts down

I have a Samsung R560 laptop that is overheating, and shutting itself down under load consistently.

Here are my load/idle temps from Speedfan:

Ignore "Temp1 and Temp2", whatever sensors they are, they're always random.

The load temperature is after just 5 minutes of playing Fallout 3 – another 5 minutes and it (the GPU – 9600M GS) consistently breaches the mid 90's then shuts down, so it's hard to get a good picture of it.

I'm looking for a solution or some way to decrease these temperatures, because they seem far too high even when idle.

I've tried:

• Opening up the case and clearing all dust with compressed air
• Updating the drivers for my graphics card
• Using a notebook cooler

I don't want to:

• Undervolt / underclock (defeats the point of having a more expensive card)
• Use lower power / performance settings (again, I might as well have bought something cheaper)

Is there anything else I can try (software or inexpensive hardware) that can help me fix this?

Has anybody had a Samsung laptop and knows if this can be sorted under my warranty, and the turnaround time of sending it off (UK?)(it has always ran hotter than it should, but now at 6 months old is getting hot enough to power off)