How many problem to ugrade warty to Hoary?

[lizardking]

How many problem I will have if I decide to ugrade warty to Hoary?

I have try to do it two times and the first time I had some problem with moving applications like XMMS and the second I had big problem with Xorg, his configuration and the Nvidia driver [that not work property in hoary] (I have a wonderful configuration in warty)

Moreover If I upgrade to Hoary when the synpatic/apt-get configures the applications like (GDM, Xorg etc..) is it better to leave my script or to make the installer overwrite new scripts??? (like Xorg.conf file or the GDM config)...

I don't want to upgrade to hoary and to have black screen at the reboot...

Thank U for HELP.. .

[lizardking]

Someone can give me some adivces to make the upgrade???