One user name shows previous name

I have a system using FreePBX, and have about 60 phones on the server. I am using Device/User mode.

One user has had the name changed, but the old user name still shows up when the user makes a call, or when that user is called from another phone. I am using Aastra 57i-series phones, with the Aastra scripts, and this only happens with one user.

Anyone have any idea how to correct this error?