<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by GoldCircle:
That's not normal - miles should just keep piling up until the end of your membership year... I'd pick up the phone if I were you.</font>
I had a feeling that the first time you qualify for Gold your membership year date is reset to the date that you qualified and you do start again from zero with the new membership year.
If you are already Gold then as stated above you just keep collecting until the year is up, at which point you start again.