How do I start the Elder scrolls IV: Shivering Isles once installed?
Shivering Isles adds content to your existing Oblivion game. You can either create a new character or load a previous save game. After 1 day, you will get a quest message providing you information about the Shivering Isels content. You can either fast travel far enough for a day to expire, or simply wait a day. If you are rolling a new character, you must exit character generation first before allowing a day to expire.
Your quest journal will add a quest target, pointing to where you can experience Shivering Isl