first of all i would refer to my response to another person a few answers back and see if that helps.
so did this ever work correctly for you? if not it might just be your tags.
this is one of those issues thats hard to be sure unless i had your player in front of me. are you sure it is completely finished updating when you go to check? someties i get impatient and check for a file before its finished updating and it appears not to be there, when it really just needed more time.. someties a lot of time if you changed a lot of files around.
when yo usay "when i update it" what is the exact process you go through?
are you sure the tags are thorough enough for RB to actually read them, or file them correctly?
what exactly are you expecting it to be doing that it isnt doing besides showing artists name?
i tend to lean towards either operator error, or needing an update/fresh install when people have issues like this. I have been using rockbox since it was labeled stable, and I have literally had an issue and never had to reinstall unless i simply chose to when a new version came out. I use lots of different features and its always been seamless.
It is certainly possible though that something happened during the install process.
It seems to be quite stable and i dont think it is as buggy as people may think. I bet their is either a reasonable explaination for what is happening, or it simply needs a fresh start.