Facing adobe 8 pro installation problem...

Hi

Facing adobe 8 pro installation problem...

i got 30 day trial copy from...

*www.softpedia.com/get/Office-tools/PDF/Adobe-Acrobat.shtml

But while installation.........
Adobe Acrobat 8 Professional, the installer pops up for a second and disappears. I have checked every thing but did not find a solution to it. Please help.

i m not getting much help on google ,adobe forums too.....

Thanks