Please help me with the DVD and my IT illiteracy!

[vheggie]

I got the DVD (region 2) delivered this morning (Yay for Amazon), and 
I've spent about 4 hours trying to make it work *sob*.

I can install and play the video (disk one) OK, but I just *cannot* 
work out how to run Disk two.  All I get is the InterActive skin 
witht eh little blue logo, I press 'play', the disk spins 
and....nothing happens; blank screen, no menus or anything.  I've 
tried all sorts of settings, installing and uninstalling time and 
time again, and I just *can't* figure it out.

Has anyone successfully installed it?  I'm running a PC with Windows 
2000 (professional), have *minimal* IT abilities, and no one to ask 
for help - Amazon don't usually take back opened DVDs, so I want to 
be 100% sure it's actually the disks which are broken and not me who 
is stupid before I try to return it...

Please excuse me for cross posting but I'm getting desperate!  Any 
helpful hints off list will be HUGELY appreciated.

Vanessa