Need Help Troubleshooting Power Issue with Dell Latitude D600?

My laptop had a problem before a long time ago with the power button. I could plug it into the docking station and it would boot but not when I took it out.

Unfortunatley I don't have a docking station anymore. I only had one where I used to work.

I'm not sure if it is the power button now. A couple of days ago it just started loosing power. Sometimes it would power up and stay on and then just die. Total power failure.

Other times it would not do anything when I push the power button.

Now, it will not do anything and it hasn't for a couple of days now.

I have tried with ac adapter and without, with battery and without. Battery is good. I have tried pushing, squeezing it and trying to hold my mouth just right.

Sometimes it would die if I sneezed. For real. If I picked it up, it might die.

I took the whole thing apart, down to the motherboard, clean it with Windex (just kidding). Got rid of all the dust and junk. Made sure everything was seated well. Didn't see anything that stuck out.

I removed and reseated the RAM lots of times.

Still nothing after putting it all back together. I only had one screw left at the end. hehe

Any suggestions would be great. I know this is an old computer but it has been getting the job done.

I mostly use it for internet. You know, looking at the latest artwork.

Sorry this is so random. I am tired and ready to get off the computer and rest.

Thanks in advance.

Email me at folway at racenter.com

This is my first time on this site.