TNL returns a "3" when I call my destructors...

Hi there,

I am working with TNL for a couple of weeks. It runs all fine. (c++)

But when I close
my program, I get a three instead of a zero.
I checked it, and there are three pointers in my wrapper-class.

2 NetInterface - classes and
1 SimpleConnection - class

When I call my destructor on exit:

if(theNetInterfaceServer != NULL)
theNetInterfaceServer->destroySelf();
theNetInterfaceServer = NULL;

if(theNetInterfaceClient != NULL)
theNetInterfaceClient->destroySelf();
theNetInterfaceClient = NULL;

if(newConnection != NULL)
delete newConnection;
newConnection = NULL;


I get these error number. If I dont delete these pointers (On wich I called 'new'), there are no errors and
the program returns a zero.

My question is:

Does TNL destroys itself, when my wrapper-class destrucs?
And if so: Shouldn't it be no problem to call to delete??

I dont wanna waste memory, so I am used to write a delete for every new.

What should I do now?

The Documentation was not useful and the searchengines can't help me either!

I hope you can understand my problem, since I am german...

Thank you and greetings,
Spunkmeyer