John,
I've had the same problem "opening" attachments received in the "pps" format. However I have had success using one of three methods. First try "clicking" the attachment and wait, wait, wait! Then "click" on the "icon" that appears in the "tray" (bottom of screen) and it should appear! Second try clicking the attachment and when the "pop-up" appears, click "save". Then "open" the attachment after accessing it from your "documents". Third download "Java" (Sun Systems) which contains the necessary program to open the "pps" attachments if your current operating system can not. Would you please "post" the information required in order to "view" the slide show of "Storms at Sea".
Barry