You're trying to push just too much information into too small a space and
the result is the individual pieces of the image are right at the limit of
resolution of most monitors and projects. Try printing the same project
file on a single sheet of 8x10 paper and you'll see it'll just be too small
to read. Then use a maginfying glass to try to read it and you'll see all
that does is make the blur a bigger blur.
I can't imagine why you would need to put full details of a 2 year project
on a single Power point slide anyway - Powerpoint is a visual aid, the same
sort of bullet point a teacher might write on the board during a lecture -
not your presentation. Trying to put too much on a Powerpoint slide is a
common mistake in many presentations. Remember the slide is something the
audience should be able to read at a glance and then focus their attention
back to you the presenter. Make one slide of a broad overview view of the
project using a compressed timescale of say quarters to introduce the
project. Use additional slides to focus in to individual quarters or
individual months when you discuss relevant details, switching slides as you
talk about wht will happen in the first month orthe first quarter, the
second, and so forth to show the details. I an't imagine putting the
details of a 2 year project on fewer than something between 15 and 25 slides
and keeping them understandable, even if you didn't have the resolution
issue - there's only so much the audience can grasp in one chunk. As a
general rule, a single slide should have no more than 5 or 6 important
pieces of information on it.