There's details of a modification called the Copper Mod posted on several forums. Finally, what makes the 8400M GS a prime suspect is that the other day an update for this GPU was released by Dell.

My flatmate has a problem with his (rather recent) Vaio Laptop (running Vista & a Nvidia 8400M GT), specificvally the video output:<BR><BR>DVDs, DivX movies, Webcam views, etc. all appear in ...

First up is the VGX-TP1D, which features a white motif, 2.1GHz Core 2 Duo T8100 processor, 2GB of RAM, a 320GB hard drive, GeForce 8400M GT graphics card, integrated WiFi, a dual-layer DVD writer ...