I'm getting this message when I try to select an era;

"Error while processing Watchtowers.txt

File does not exist:
data\world\maps\campaign\imperial_campaign\descr_strat.txt"


Additionally, I managed to get into the game screen but I was able to do everything except play a campaign. Would not let me continue past the menu screen(not the campaign menu.)

I'm moving my game from program files to C:

I'm on vista. I'm going to try a re-install...


Any suggestions. Thanks!