Time Evaluation rero issue

Hi

When I run time eveluation, even though the date in eariest retro field in It0003 is removed and run it is retroeing back to 04.10.2009.

I have run live till 31.08.2011 and then run only for 01.09.2011, actually it has to run only for 01.09.2011. But it is ruinning retro from 04.10.2009.

Is there anywhere I can check for the earliest retro active accounting date.

Thank you

Sriviswanath