This is my first post here, and I wanted an opportunity to introduce myself, say hello, and hopefully get some help on my issue.

My dads PC, with Vista 32, and default e-mail, will not open .PPS attached files.
This was not the case when I finished his pc. In fact it had no issues opening .pps before I handed it over to him
PPS can open a .pps/.ppt ect ect file from anywhere else in the pc however.
There is an error when you try to open a .pps attachment that states, that the file assc. may need to be set in control panel. I've checked this and all of the PPS ext type files are set to PPS program.
I'm at work atm, but I can post more specifics in a a couple of hours. Like any software diagnosis, please ask as many questions as necessary in order to narrow down the issue.
Thanks,
Athis