I give Sales return with invoice reference, but the autoinvoice populate gl date and transaction dat

Dear All,

Whenever I Create Sales Return with invoice reference fill on a return tab, auto invoice populate the gl date and transaction date same as reference date. for example :

1.I Create sales Return on 13 March 2014

2. Invoice Reference Date 1 October 2013

3. Inventory Receipt On 13 March 2014

4. Credit Memo created transaction date 1 October 2013

5. GL Date 1 October 2013

I Need your help to solve my issue. I don't know where to check it. please Advise.

Many Thanks for your Help.

Best Regards,

Dian