Hey,

I'm new to bitcoin and now I have a little problem or you can say a question.

Is it possible that my bitcoin adress changes ?

For example. I entert at a bitcoinpool this adress: 15E**************...
A few days ago I got some BTC's from a person, he send the BTC to this adress:  14i**************...
Today I open my original bitcoin client and it show another adress: 1B2**************...

Is this a normal fact ? I thought that every person has his/her own adress !?

I hope you can help me because I don't wanne loos my BTC's.

best wishes
tobma