I realized that when I zoom in my pie chart so the complete pie does not fit on my chart, the pixels at the border are not drawn correctly.

Note: I am using Delphi 2010 and TeeChart V8.06
I realized that this problem did not occur on my Delphi 2009 with TeeChart V8.04!
Can you please tell me if this is a known issue and if there is a workaround?
Thanks!