BUG #5870: Cannot get the first popup window during install

The following bug has been logged online:

Bug reference: 5870
Logged by: T Zimmerman
Email address: zimmee_freepost(at)hotmail(dot)com
PostgreSQL version: 8.4.1-2
Operating system: Vista Home Premium with SP2
Description: Cannot get the first popup window during install
Details:

I cannot get the first popup window during install. I saw one person on
your blog mention that but didn't see a response. I just click on the .exe
for 8.4.1 and nothing at all happens. Things I've tried:
o Ensuring I am an administrator
o Run as administrator
o Creating another user as administrator for the install
o Turning off Windows User Access Control (UAC)
o Monitoring the Task Manager (see no evidence)
o Monitoring the Windows Event logs (see no evidence)
o Ensuring I have enough memory (3GB seems like enough)
o Verifying proper hardware which is HP Pavilion dv4 Notebook, 2GHz dual
CPUs, 3GB memory, 32 bit OS

What to do???
THANKS!
T