Hello !
I've got GTA IV on CD, so I decided to install it today.
First, I got problems with Windows Live, but sortet them out with xliveless.
Then I downloaded a 100% savegame file, and put it in My Documents/Rockstar Games/GTA IV/savegames and /user/Hemulen/Appdata/Local/Rockstar Games/GTA IV/savegame
When I try to load it is tells me "load failed, please check your hard drive and try again"