I have a Dell Inspiron 1100 which, for the last 4 days, will not start using the power adapter. It will start and works fine with a charged battery. However, my battery is now out of charge. If I take the battery out and try and start the machine, all three lights go on at the front, but then immediately everything goes off. I think with machine switched off and power supply plugged in, it is charging the battery, but the ac power adapter makes a wierd clicking/ticking noise, so I'm not keen to leave it on/charging too long. My Dell Inspiron 1100's warranty ran out in 2004... Dell were very pleased to tell me this and tried to sell me an adapter for £85.00. However, I'm not sure that replacing the adapter will fix it. The green led is on and, as above, it appears to be charging the battery AND all lights light up for a split second at least, so some power is getting through. I have read other posts with similar issues, but can't find exactly the same issue. Any help/ideas would be greatly appreciated.