Powerpoint Help
 

I'm using powerpoint 2007 on vista
this is my first time using pp and when i preview my work using the regular pp program, it looks fine
but when i open the file on powerpoint viewer 2007, it screws up (text effects are all over the place and text is moved up or down)
I have a presentation next week and i'm wondering which one will show when i run it on the lecture room's computer