Save/Load Dialog problems

I recently downloaded the demos for particle illusion (2d video effects program) and alam dv (video effects program). First i downloaded PI (particle illusion) and discovered that when i hit the "save output" button a windows "save as" dialog opens, but then 3 seconds later the whole program closes without warning. I contacted PI tech support, but nothing they said worked, they said it was a windows problem. So thats when i downloaded alam dv. The same thing happened when i hit "load movie ", the "load movie" window would pop up, then the whole program would close. Help would be greatly appreciated!

 

yes i am positive the demo allows you to save, both of them do, because sometimes it works, but usually not. Plus, it says on the site that the demo does. Yes i have reinstalled both, it didnt work. Any more ideas?

 

thanks for the tip, but ive already done all u said, i think im gonna go ahead and format my whole hard drive, that always works, plus ive been meaning to do it for some time.