Camera not recognized

I have Windows XP and just installed service pack 2--I have a Nikon coolpix 2500 and when I connected the camera to the PC (HP) with the USB cable I always got 4 or 5 options for downloading. I also got a message that said the computer recognized that hardware was connected. Today when I tried to download pictures I got the sound that something was connected but no message and no change on the screen. I went to the control panel and with the camera attached and turned on I clicked on the icon with nikon coolpix and the computer said there was no camera. I also tried with a card reader and even though the light was on there was still no connection. Any suggestions?
Thank you
Everett

 

Welcome

Did you install anything other than SP2?

Have you uninstalled SP2 and tried it?

Does the computer recognize the reader? If so what happens when you plug the card into the reader?

buck

 

Don't know if you read this but HP has some nice tips for installing SP2 on their machines and things you should update and such before installing. One of the cautions on the HP site is: CAUTION: Upgrading to SP2 without updating your drivers can cause some software to not work properly.
I know I purchased my HP before June 2003 so I think I need some other HP updates not listed on the site before I can install SP2. Don't know why they have to make this so confusing for us non computer people.

HP SP2 install