New powerbook user with a display problem

Hello, one week ago I recieved in the mail a new 15 inch powerbook, which is my first mac ever. I am very pleassed but have one problem. Every time I unplug or plug in my power adaptor, my display malfunctions and everything freezes for about 10 secounds. I first noticed this another instance, the display malfunctioned similarly when using the full screen visual effects in itunes. This had happened after I connected my powerbook to my television via dvi cable, and then disconnected it. I don't think that has any relevance to my problem as it seems to me being a PC user I would assume it is in the driver of the video card not being fully compatible with other hardware, I would assume on a mac you do not have this problem though so anyone have any ideas? I will post what the Display looks like when this problem occurs.

I have the 15 inch powerbook with the radeon 128 mb video card, an 1.67 processor. I believe the 128mb video card is the issue, anyone have this problem any suggestions? Thank you

UPDATE


I visited the Apple store nearest me and they were very helpful they were able to confirm that my machine was defective, and talked to the apple store phone network for me. They told me that within 48 hours i will be contacted by email with instuctions for handling what they called a Dead on arrival product (DOA) any of you had any expierence with this procedure... what can i expect from apple? shipping, repair, replacement, time frame ext anything... thank you i cant wait for my first mac that....works! hahaUPDATE

runninmac-thanks

Thank you all, I will go to the apple store that just opened in my area tomorow. Runninmac, small world I live in Grand Rapids, as well convienent that there is an apple store in woodland now

UPDATE


I visited the Apple store nearest me and they were very helpful they were able to confirm that my machine was defective, and talked to the apple store phone network for me. They told me that within 48 hours i will be contacted by email with instuctions for handling what they called a Dead on arrival product (DOA) any of you had any expierence with this procedure... what can i expect from apple? shipping, repair, replacement, time frame ext anything... thank you i cant wait for my first mac that....works! haha

yes mine started out that way but progressively has gotten slightly worse now after doing anything related to the power managment i get some pixel annomilies, apple store definately said it was wrong and claimed it was dead on arrival and did everything they could to get me a new machine. I suggest you go in or call. my config was exactly that 1.67, 128 vram..........any idea about the DOA exchange policy though