On my 1GB memory, iMac G5, EVERY TIME i open a slideshow on powerpoint i get the spinning beach ball for about 15-20 seconds before i can proceed. all other applications continue to function as normal, but powerpoint has this perpetual glitch. If I were using windows (as i did for my whole life until recently), i would shrug and accept the small delay. but i've come to expect perfection from mac os X, so this glitch kinda irks me. any ideas?