nothing is perfect... its all depend on luck!
i have no this problem, and i kind of love this laptop!

conclusion? i have no regret to get tis lappie ( i name my xps m1330 as lappie )

what you mean the the problem only apply to those with nvdia graphic? whats the display problem actually?

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Added on May 31, 2008, 2:14 pm
after reading through the thread, as my experience, is the faulty mother board so far.
just before 2 weeks ago, i have changed with two faulty mother board, which are the A08 CN-OPU073 mobo. The reason i changed it is because everytime i turn on the laptop, the screen displayed some RAINBOW above and below the screen, also got the weird vertical or horizontal lines too when i get lucky   That time i need to press the power button again again and again in order to successfully log into the window. But if does log into the window, after few minutes, the screen distorted by some crazy colour, then the laptop shut down. This problems occured during the 1st mobo replacement.

The 2nd replacement: The same problem, but the probability of logging into window has increased, but still the laptop will shutdown automatically.
i remember that time when i watched "DIE HARD 1" with my xps, after 2 hours, the screen went blank (black), but the sound still continueosly producing. No matter what i pressed, the laptop cant even shut down. And, before that i like to turn off the window security centre. But that time somehow i turn it on, and it pop out a message, said that my display driver was uncompatible to...... i forgot already. At that time, i though is my x64 nvdia which download from tweakforce, caused the distortion and make my laptop unuseable. So, i uninstalled it, but still the problem occured.

After that, i went back to my hometown, called dell to replace a new mobo to me, this time, i strictly ask the lovely tech customer to sent me the new OD057P REV00, which strongly recommend by Dopod brother. So, after 2 days, they really sent me the new mobo with REV01. Now, the problem solve, works good. but i haven install any temperature monitoring program in my laptop. if do, i will update my temperature reading soon.
By the way, the engineer told me that my 2nd mobo actually had some burnt issue around the power supply connector there.
haiz. dell really nothing to do and find things to do la. But finally i still get a new mobo replacemnet.

So, as a conclusion, i think our 8400 works ok. cz now i currently still installed the x64 tweak force driver. works prefectly.

Hope these can help you.

haha! jus wat i said, all depend on ur luck!
and congratez tat they finally made ur machine perfect! lets cheer for dell technician support!

the 1st problem is the most common problem, this is wat they call "flaw" or something like tat. most of the oversea user face tis problem, and one of my fren too. they said it was graphic card fault, burn or something.

but the 2nd problem of urs, i not really bout it 
8400 is a discrete graphic card, not integrated. means seperated.

Nvidia i use, intel graphic card is not compatible to my job.
and u noe, this is no onli occur in XPS even inspiron oso hv tis kid of problem, it jus graphic card's burn, tis is wat my fren telling me coz he is using inspiron.

and i tell u wat, every electronics hardware are going to have problem after some times. please dont mind bout de weakness of him, as long as u support him. this is wat my fren teach me, he brough sony vaio few weeks b4 i get my dell.

thx

where did you bought the copper sheet?

Why tri-boot when you can now use VM?

besides all this problem..is this model any good??

Haiz, the specific term still havent out yet, so dun be so happy first...

As me I would like a "cooled" GPU and not extended warranty...that doesnt helps much and within warranty we still need keep servicing our laptop because of hot gpu like car(ahh,i hate that and waste my time doing that)

Some how nothing been heard from nVidia side, so irresponsible and they should provide a enhanced gpu for users worldwide. Now lappie with nvidia gpu really sucks and I can see why new studio series is using ATI gpu but not nvidia.

MOD! copper mod! Am I right?

Many claim that it's capable of reducing 10 degrees at peak usage. At idle around 5 degrees. I saw someone saying that while playing devil may cry 4 the temp is only 84 with copper mod. It's considered very good as my gpu goes up to 97 when playing warcraft. Idiotic.

no la just use my car's air-cond blow into the fan hole lol...kaka, use air-cond only managed to get 49c on gpu temp....we should boycott nvidia>.<my desktop also wan change to AtI radeon, better and cheaper than nvidia.

It's actually both. First it's nvidia's bad chip. Then add in the lousy over-thick thermal pad, kills the gpu faster.

Anyways bro tamade, what is the thickness of the copper sheet you used?

pmmonkey,
Bulk?Haha, not many of us wanted to do so and only reduces temperature by 10C. Somemore my system still in warranty, if really want to do also wait until the warranty ends. Oh ya if can't find copper foil then just use aluminium foil which is available in the market. Just go to supermarket and you could find it easily+cheap.