Bitcoin address changes

[pkk2000]

I know my wallet addresses will change when I send money from one of my addresses.
Will my wallet update the new address automatic and will all the money I had on the previous address move to the new address?

Will my address change when I rechive money to?

[jfhoff]

Address change is not automatic in all bitcoin clients (but it is advised that you create a new address for each transaction, for anonymity's sake). However, some clients do automatically create new addresses: Armory and Mt. Gox, for example. Bitcoin QT creates a pool of 100 (default value) addresses at startup, so that your backup will contain the first 100 transaction addresses. Make sure you back up more frequently than this.

[DannyHamilton]

I know my wallet addresses will change when I send money from one of my addresses.
Will my wallet update the new address automatic and will all the money I had on the previous address move to the new address?

Will my address change when I rechive money to?

Going to need more information to get you an accurate answer.

Most importantly:

What wallet/client are you using?

Assuming that you are using Bitcoin-Qt, I suggest you search for some posts that discuss transaction "change" to better understand what is happening.  If I have time later, I'll find one of my old posts on it and link to the post here.