In this thread take a look at my post #3.

http://www.flyertalk.com/forum/showthread.php?t=17335

Although my post was in reference to an Aeroplan booking it is also applicable to revenue tickets.

I must admit, when you call AC and indicate you want them to change the ticket for no fee since AC changed their schedule, I kinda curious to know what they would/will say -- whether they would make the change to fit your schedule or tell you no way -- pay up!

In any event, if they say no, CIC*77 puts your in the driver seat to allow for any routing, any flight you want.

Let us know what happens.

Cheers