ok, here's the scoop...
Called Dell support yesterday. I went along with the silly stuff they asked me to do... all of the sudden it work. She seemed quite happy
that it was working because I don't think she really had a clue what went wrong. I asked her to note that I've called and that I will call
right away if it happens again.
It happened again this morning. Called Dell and got a tech support person in 30s. I was impressed by that. This guy seemed to know more
than the last person. He explained that he had to ask me to do those goofy things (blow in the RAM slots???). After that we ran a diagnostic
by pressing 'mute' and the power button at the same time, the lights started blinking and junk, then some beeping happened. I got 2 sets
of 3 beeps followed by 1 more beep. After looking this up he concluded the my video card or motherboard is damaged and that I must return
the laptop. Purolator is going to ship me a box, and I just give my DSP number and they will come by to pick up my laptop and ship it out. So far my overall feeling of service is positive... still annoyed that my 1 week old laptop is broken, but I've built 30+ computers in my day, and I know that this stuff.
Of course I'll keep you all posted!