excell 2007 sp1 doesn't print in Color

After installing SP1 for office 2007, we are unable to print in Color to our Cannon c3380i from Excel . It will print in black and white only.
We can still print in Color to this print from word, outlook etc.
We have installed the lastest print driver.
The problem is the same on either XP or VISTA computers.
I don't have this problem with computers that do not have SP1 installed.
Any ideas?