I had a lot of problems getting this to work right, my main problem being the need to re-plug the thing every time I turned the computer on. Bogus.
But after 2 hours of futzing around and trying different methods, I finally got it working right. Here's what worked for me on my EP45-UD3L system on 10.6.4 64-bit...(although should work on 32-bit as well)
(All credit goes to AquaMac whose RalinkAirport app makes all this work)
First download the latest Ralink USB2870 driver:
http://www.ralinktec...support.php?s=3Also grab my attachment.
The following worked for me (all necessary files in my attachment):
1. Install the RT2870 driver from the Ralink dmg. Don't restart when it asks you to.
2. Copy "Ralink Airport" app to /Applications.
3. Copy "RalinkWirelessUtility.prefPane" to /System/Library/Preferencepane
4. Restart.
5. Once back on your desktop, go to System Preferences-->Accounts--->LoginItems
6. Get rid of the "AwakeX$#$#X" item and add the "RalinkAirport" app. (Doing this will make the computer open the Ralink app as soon as you boot in).
7. Go to System Preferences-->RalinkWireless. Set up and save your wireless profile/etc).
8. Restart.
And now you should (along with the neat little apple airport icon at the top-right of your screen.
This worked for me. Good luck.