Help... can't rename my file

[J_W]

Thanks for everyone's inputs.

JEBB:
the ownership box is the first place I went when I first discovered this problem. Even I messed around with these settings (new owners, allow enclosed items...) and nothing changed. The files allows me to change still behave normally and those I have troubles with remain stubborn.

Doc:
Thanks for the tips and the explanation. I did what you said and found there are a few with "+" and some with "@". I don't know how they got there the first place and how to get rid of them (if they are the criminals). However, their appearance seem nothing related to the file name behavior...

Jardster:
Thanks for the suggestion. That was what I have been doing. It is annoying but work...

Again, thanks for everyone's suggestion. I am still looking for a cure...