I have server 2008 R2. and exchange 2010. I have issue with one of my user. When my user, log in, he gets back to his old global address list it. To fix it, I logged in his account, I deleted his profile in control panel and re created his profile. It works for the short time period and then it again roll up back to the old global list. It only work for 1-2 day .
However,doing this again and again did not resolved the issue. Rest of the users has no trouble with it. All are good except one.
Any advice?