I checked and found some possibilities: 1) ROM 3 compatible - I don't have a way to create the disk to see whether this is the case (can someone with a ROM 3 test)? 2) Harddisk installable - I tried to launch it and it says out of memory (I think I have 4MB). Despite these I see no differences at all, even if the version has jumped from 1.0 to 2.1.