Impossiblity to read property.xml file after modifications, always the old prperties

Hi,
I'm searching since two days, but impossible to find what's wrong.
I've made an app with a property file, in /resources/properties.xml
The firt time, it's OK, the simulator read the file, it's OK
But after having modifie the XML file with a text editor, impossible to have my new properties.
The file is like this :
<properties>
<property id="1" type="string">41.332353 ;9.255809;;Iles Lavezzi</property>
<property id="2" type="string">41.383892 ;9.145946;;Bonifacio</property>
</properties>

<strings>
<string id="Titre">Waypoint</string>
</strings>

<settings>
<setting propertyKey="1" title="Titre"> <settingConfig type="alphaNumeric" /> </setting>
<setting propertyKey="2" title="Titre"> <settingConfig type="alphaNumeric" /> </setting>
</settings>

I've made some code for reading thoses properties, and I always have the old properties, as if the simulator was keeping them in memory
Impossible to read the new properties
I've tried to put some settings in my properties files, and perhaps that is the problem.

I've tried to create an new app, by copying my source codes, and I always have the old properties !!!!!!

I think I have missed something and I don't understand anything !!!!

I'm on Eclipse for Windows, with connect IQ SDK Win 2.2.2

Thanks for your help :)