i occasionally get an email with a pps attachment and when i try to open it my computer says i don't have a program to handle that pps stuff. so i installed a microsoft windows powerpoint viewer program (it's in the list of add/remove items now) and tried to open the pps email again.....and got the same message window. i have IE8, but i'm generally on mozilla firefox...and my e-mail is outlook express. so how come i can't open the pps mail? the powerpoint shows up 9-10 times in the folder options section of control panel. i even tried going to IE8 to read the e-mail and there was no change. any suggestions