i wouldnt blame vista yet, i use vista and havnt had any issues.. so far. and you dont need to put in the ToB disc to play the expansion...... if you did a full install, just pop in SoA disc 2. If Tob was installed properly, then when you end SoA it should automatically put you into ToB, and IIRC, i didnt have to change the disc, been about a month and a half since i played a ToB game
note: before i posted this, i ran a quick test and brought up a game in ToB with the SoA disc... and brought up a game with the ToB dic, both ran fine for me.... in case anyone wondered
