nested unions and structs

[Alberto Simon]

The union DWord below does not product the expected union, Data isn't at the
same address as the union start address is... What should I do to correct that??

public union Word
{
// Atributos

struct
{
public ubyte Low;
public ubyte High;
}
public ushort Data;
}

public union DWord
{
// Atributos

public uint Data;
struct
{
public Word HigherWord;
public Word LowerWord;
};
}

Regards,
Alberto Simon