Compatibility between XML files

I found that loading an XMLfile into a Window Form from a previously Graph created and saved in a Web solution as XML doesn’t show the Graph correctly: the X and Y axis of the items in the Win Form are somehow in a wrong position.
Any suggestion?

That ought to work. Exactly what kind of errors occur? Is there any pattern to them?
Are you sure you are using exactly the same code in both WinForms and WebForms to interpret the XML data?