erm...

i got a problem with my ms powerpoint at home.

i got a ppt file that consist of my project presentation. in School i am able to view all the pictures..and do anything to them...(in simple terms...in school everything works fine)
but when i bring home the ppt file...to work on my home computer
an error will appear.
telling me that there is a error etc..n nvr tell me wat is the whole problem.
then when i disable the antivirus, the file can be opened..but there will be pictures that become off-colour..as in the colour will get messed up..brown will turn green, grey will turn pink etc.
the pictures r in adobe rgb 1998 jpeg files
both the school computer and my home computer r using the same version of software.
on a ibook..using the powerpoint mac...i can open the file and see..no problem..
using openoffice..too..i can view the whole file wihout any problem.

wat is the problem...is there anyway i can solve it.
Do help me thanz.