Plugged in, Not Charging

I have a Dell Inspiron E1705 running windows 7 RC and recently developed this problem a couple of nights ago. On and off before that I would get the message, unplugged the AC power, plug it back in and it would start charging again. It has now developed into a permanent problem. I have googled this issue and found everything I can find on how to fix it, but nothing seems to work. Others have tried replacing batteries, motherboards, power supplies and reloading OS's. What works for one person doesn't always work for another. Most solutions are just temporary band-aids to what seems to be a growing problem. Has this issue been addressed in the final release?

I had been running windows XP for years and never had a problem; it has only been since installing Windows 7 that the problem began. If this is a driver issue inside of Windows is Microsoft planning on issuing an update to fix the issue or are they just banking on 7 fixing all the issues that Vista has? This is not a brand specific issue as far as PC's go, I am an IT professional and have spoken with many other IT folks about it and nobody has been able to get an answer out of Microsoft and the laptop companies (Dell, HP ect.) are milking more money out of users by telling them they need new batteries, power supplies and motherboards that at best are a temporary solution. This issue really needs to be addressed.