I have noticed that when I have unread messages the flashing red LED is not infinite. It lasts for a unknown amout of time but not forever ( until I read the messages) Is there a setting I'm missing? Also, are there any applications that change the color of the LED for the different type of messages?

You're not missing anything. That's how it works.
It's a NEW message indicator, not an unread message indicator. After a period of time, the message isn't new anymore, regardless of its unread status.

There might be third-party apps to change the LED colors for specific events.
Check the aftermarket software area.

The flashing lasts about 20 minutes depending on the OS. I've noticed on newer OS's it's less than that.

Do a search on the forums for BBAlerts. It'll do what you're asking.

I DL the trial version of BBalerts. It seems to install correctly but wont open on my device

pull the battery while powered on, allow it to reboot, try again.

That did it! You guys constantly amaze me!

How about some help with all these setting....my god im lost

Try the thread all about BBAlerts over in the Aftermarket Software section in this forum.

Not finding anything

Go to the Aftermarket Software forum. Then Click "Search this forum" and type in BBAlerts. You'll get a nice list of threads all about BBAlerts.

I timed the red LED indicator on my BB -- it lasted 10 minutes.

can we change the led colour?

Wirelessly posted (8320 Curve: BlackBerry8320/4.2.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/100)

BB alerts seems to let you apparently. Check above threads for searching info

10 minutes of your life watching that light you can't get back...lol.

I was thinking the same thing . . . well between John Clark's response and daphne's at least we know how long!