On one screen I can not use any of my apps, I can't open them or delete them however I can use the 4 apps that are on the bottom, any idea why?

Have you tried to restart your ipad? Give that a try and see if that works for you. I have never experienced one entire screen to be nonfunctional, or in your situation minus 4 that work.

Hi and welcome to the Forum!

Yes this is highly unusual, as Skimonkey suggests do a restart and if that doesn't do the trick, a reset is the next step
Restart: Press and hold the power off button, the one at the top right. You will see a slide appear to power off, slide this and the screen will go dark and a Whirly will appear. When the Whirly disappears your iPad is now off. Press the power button again until the Apple logo appears, this will take a few seconds and your iPad will start again. You should restart your iPad occasionally also as it will keep it running smoothly. Now see if it is operating. If not a reset is the next step.

Reset: Hold the power off button and the home button simultaneously, keep holding them in and you will see the power off slide appear and disappear, wait until you see the Apple logo appear before releasing the buttons. It will take a little longer for your iPad to start.

The IPad Forum is a community of members from all walks of life and from all over the world coming together to share our experiences and to help each other learn about this wonderful piece of technology the Ipad. There is a wealth of information already here in the many threads we have so doing some searches will answer most of the questions you have. If then you cannot find the answer you are seeking then by all means post your question. There are many friendly and informed members here only too willing to help you.

We also have our own App - It is a very simple app to navigate.
http://itunes.apple.com/us/app/discu...412896524?mt=8
Reading the IPad manual is a great place to start so please download a copy of these.
http://www.support.apple.com/manuals/ipad/
2 very informative threads from which you will learn many tips and shortcuts for the IPad.
http://www.ipadforums.net/ipad-gener...dont-know.html
iOS5 Tips and Tricks
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Sent from my iPad using iPF