🚀 go-pugleaf

This error occured after update from C++ Builder 3 to 4:
(Hope this is the right newsgroup for that)

I have created a new form with the constructor:
__fastcall TForm2::TForm2(TComponent* Owner,  int test)  : TForm(Owner)

With the main form I put this code to a button-click event:

 Form2=new TForm2(this, 6);
 Form2->ShowModal();
 delete Form2;

After starting and pushing the button, a "stack-overflow" error
occured..
It does work, when I replace the "int test" in the constructor to
"unsigned int test" or another var type..
With Version 3 the error was not there..

Probably a compiler error!?
Anybody can help me?

Tobias Kloss