All bar label move to left of screen in print preview! Help?!?!

Can anyone help with a print preview/printing problem as below?

When I go to thwe print preview screen, the activity/milestone/etc text moves from the right of the object to an inch within the left of the page.  I've tried everything to resolve this, but nothings working. Has anyone had this same problem & if so, how did you fix it?  Hopefully your able to help, but I guess the worst case is seting the plan up to include no text tot he right of the item.  I'd rather not do this though, as our project planning has a agreed reporting style I'd like to stick to.