PP installation prompting "Insufficient Free Disk Space"

When downloading the Party Poker software application onto a new computer (XP Pro, Norton secutity), the intallation process stops with a prompt seemingly from the download file itself "insufficient free disk space." Clearly there is enough free diskspace on a new 500 GB C: drive. What setting or problem could be causing this? Posted this on the Software forum, but think more tech savy 2+2ers might see here.

[TheTROLL]

I'd guess the install program is confused by the enormity of the drive. Try partioning off 1GB and installing to that.