Why does my macbook keep freezing? ANSWER PLEASE THIS IS URGENT!

First you need to tell us how much hard drive space you have free. Then mention how much RAM you have.

Next, run Activity Monitor, click on the CPU column to sort by CPU usage. Tell us if any processes are using more than 10%.

Finally, run Console.app and tell us if there are any scary-looking message repeated 4000 times.

How many applications are you running at the same time?

You might want to try to reinstall the system.
Boot with your Disk, And select the "Archive and Install" option.

If you couldn't open the Finder then you wouldn't have gotten this far. If you are running Firefox, iTune, and Safari it can't be that unresponsive.

Try this -

If you have any external drives or anything else physically connected to your machine, disconnect them. Restart your computer. After it has restarted, run Console.app. Click "Show Log List" then click "All Messages" under "LOG DATABASE QUERIES". Find the first message printed since your reboot. It should look something like this:

1/11/09 10:56:08 AM kernel Darwin Kernel Version 9.4.0: Mon Jun 9 19:30:53 PDT 2008; root:xnu-1228.5.20~1/RELEASE_I386 

Select all those message, copy, and paste them here. You can't just say "alot of other messages". You must be specific.

If you are having serious system trouble, you don't want to go running lots of applications - especially not at the same time. How does your system run when you aren't running any applications? At what point does it start running poorly?

please reply!

First of all, RELAX! This is a user-to-user forum. People here volunteer their time and post when they can. If you need an answer faster than people here can provide one, why not call AppleCare Support? You can talk directly to someone on the phone and get advice directly from Apple. You can call them right now and they will walk you through some troubleshooting. It's possible you have a defective MacBook or a defective component, like RAM. If this is the case, you'll need to call AppleCare Support anyway to get get them to service your MacBook. You can call them at 1-800-APL-CARE which is 1-800-275-2273.

-Doug

I understand your feelings, and yes, there is something wrong. I agree that you should call Apple or take it into a Genius. You might have bad RAM or just need to re-install. At the very least, repair permissions and re-start.