Originally Posted by ttroglia
I just had this problem and it can be fixed by performing the following steps:
1. backup your blackberry
2. go into your desktop manager, click on backup/restore, then advanced options.
3. On the handheld databases, click on address book, then click clear.
4. restore your blackberry using the backup you just created.
Step 3 may be redundant, but the process fixes the problem.
5-31-05 I had this very problem. Some of my address would not allow me to edit, where others would. I could create new ones on the handheld w/out problems. I did what the person suggested above and all is now 100%. Thanks for the hint.