11/10/2009: "Reset statistic in Eudora 7.1.0.9"

I try to reset the stat in Eudora, but when I use the Tool Statistic Reset, the statistic are not reset?

You must erase 2 files in the directory where the message are store on your computer. You must
erase the following files:

Eudora61Stats.xml for newer version of Eudora
EudoraStats.xml if you carry and old version of Eudora and never reset stat before.