My laptop stopped picking up wifi after a much needed modification. I have a 3 year old hp pavilion dv9000. the hinges broke so I decided to remove the monitor of the laptop and hook it up to a desktop monitor. everything seemed okay when I turned it on but after my programs loases the computer wouldn't connect to my home router. is it because I disconnected my monitor? and is there a way to fix it?

Laptop batteries will usually last from 1.5 to 5 hours, depending upon the demand, the battery and the use. Sound burns up a lot of juice as does the DVD player so if you're watching movies or playing games an hour is about right. You can purchase a better HP PAVILION DV9000 Battery with 12 cell , it will work longger.
detail: http://www.battery-center.net/hp-pavilion-dv9000-battery.html

I just started getting this problem myself. I'll let you know if I find a solution. For the time being, I'm pinching the joint with my fingers as hard as I can when I open or close it.

Check out this WEB site on how to replace a hinge on a laptop. It may not be exactly the same model as your laptop but the principles are the same, Click on this link :-
http://www.insidemylaptop.com/

Quite often this is caused by someone changing the display type. There should be a function key control that allows you to view just your lcd display, an external display, or both. Try and change that setting and see if it will resolve your issue.

Check out page 86 for the display schematics. Page 120 outlines the dis-assembly. Page 154 actually describes the screws of which you speak. You may be able to purchase them locally.

http://h10032.www1.hp.com/ctg/Manual/c01311536.pdf

HP *had* issued service alert 08112101 which covers the left display hinge failure.
HP Notebook Left Display Hinge Program
HP Pavilion Notebook model series affected: dv9000, dv9100, dv9200, dv9400.

This program recently ended on May 31, 2009, but HP may still allow for a grace period.

Otherwise, you'll need the following:
Display panel back panel enclosure (single lamp) 432957-001
Display hinge kit (single lamp) 432963-001
LCD bezel w/ webcam (single lamp) 432955-001

Trained pro's should be able to do this in about 20mins, there is partial lower case disassembly and complete LCD housing dis/re-assembly.

-Sy

you may find the hinges parts from eBay which is cheaper price:
http://shop.ebay.ca/?_from=R40&_trksid=m38&_nkw=HP+Pavilion+DV9000+hinges&_sacat=See-All-Categories
how to replace your laptop hinges:
1) take out the screws at back of laptop under the hinges base
2) or take out the screw at side of laptop near the hinges base (if you find any screw there)
3) there are two cables connect between LCD lid and laptop base
you do not need disconnect those canbles. just careful them
4) take out all scews on the front of lid cover( the scews is covered by thin plastic cover), then take away front lid cover.
5) take out the screws at beside hinge base and side of LCD panel(2-4 scews at one side), you need check the back of lid cover can separate to LCD panel a little., be care replace only one at one time .
6) put back all screws step by step.
hope help you fix it, please take a rating let me know how much you are helped, thanks! any question please let me know!

May I ask what model it is?

The dv9000 model if you havent been told had some that had bad motherboards and that sounds like what mine problem was.

If its a dv9000 then you may want to talk to a HP agent about that.

make sure ya have a VISTA compatible Driver for ya wifi ... go to manufactures web site and DL latest one for VISTA..

Remove and reinstall most up to date driver... then use ya connection program to set it up.