I have a Hp DV5220 us. It stopped booting up a few weeks ago. It actually will do more when I take out the battery and just plug in the brick - yet it still is having major problems and it won't complete boot up - it will get into the Windows XP screen and the series of dots under the Windows logo will keep moving L to R but it will do that forever if I let it. I replaced the hard drive with a drive I know works, I resat the RAM. I've tried booting in safe mode - and will either get stuck on the line with drivers/mup.sys or sometimes gets into a black screen with Safe mode on it, then goes into a blue screen that says A problem has been detected and windows has shut down to prevent damage to your computer
If I put in an XP install disk and boot up, it will go into a chkdsk mode, say the volume is dirty, do some repairs and then come up to the desktop screen of a hill with green grass and a blue sky with clouds - but no icons and the mouse arrow is frozen at mid screen and won't move.
Any ideas on where the problem is and or how to fix it?