MediaLab, Inquisit and Video Issues in Windows 7

[liminal-user]

Testing:
W7 vs XP by ML2008 (latest version) vs ML2010 (latest version) by Inquisit 3.0.4.0 vs 3.0.5.0

When using Windows 7:
Problem: MediaLab won't call up inquisit (both ML08 and ML07 and both versions of Inquisit).
Run as admin doesn't help.
Neither does running in compatability mode.

A slight bit of progress:
Changing the environment variable > system variable > path to C:\Millisecond Software\Inquist 3 and installing Inquisit to C:\Millisecond Softw... works. Doesn't work with pathing to Program files or Program files (x86) [obviously it was installed at these locations when I tested].

BUT this causes direct x and direct draw errors, and Inquisit crashes.
Note: These errors do not occur if running the script stand alone in Inquisit.

Are there any other solutions to make MediaLab call up an inquisit task under windows 7?

Also -
Other things that I used to use in our old XP ML2008 lab that are now broken in our W7 lab:
- the x parameter - doesn't work in ML2008 or ML2010 in Windows 7.
- background video - doesn't work properly in ML2010.
- the d parameter - when used on a trial displaying background video or a movie trial under Windows 7.