Problem with old code, works under VC++ 6 but not VC 2005.

I have an old project for a DLL we use for Excel. When I build the project as
Release in Visual C++ 6 it works fine. But when I build the project in Visual
Studio 2005 it will not work. The problem I have is in the following code (I
have reduced the code to only include the interesting part):

#define rgFuncsRows 2
static LPSTR rgFuncs[rgFuncsRows][7] =
{ // Procedure type_text function_text argument_text
      macro_type category shortcut_text
  {" TEST1", " RR", " TEST1", " Arg",
             " 1", " ABC", " "},
  {" TEST2", " RR", " TEST2", " Arg",
             " 1", " ABC", " "},
};

BOOL APIENTRY DllMain(HANDLE hModule, DWORD dwReason, LPVOID lpReserved)
{
short i,j;

  switch(dwReason)
  {
    case DLL_PROCESS_ATTACH:
      for (i=0; i<rgFuncsRows; i++)
      {
        for (j=0; j<7; j++)
        {
          rgFuncs[i][j][0] = (BYTE)lstrlen(rgFuncs[i][j] + 1);
        }
      }
  }
  return TRUE;
}

When I debug this code I get an Unhandled exception saying "Access violating
writing location 0xZZZZZZZZ" when the BYTE value is about to be written to
rgFuncs[i][j][0].

I can't figure out what's wrong, the code looks ok to me. And as I said
earlier, it works when building a release under VC++ 6 (Debug build under
VC++ 6 fails though).

Will be very thankful for help or tips on what may be wrong.