Vanilla 1.1.5a is a product of Lussumo. More Information: Documentation, Community Support.
Hi all.
You need to download and install Direct X 9 from Microsoft. It sounds like the game just isn't installing the necessary libraries.
Additionally, you can visit the Areo forums where they have a fix posted:
http://forums.areograph.com/viewtopic.php?f=3&t=51&sid=2a5e353a242ed726bbf64f12a0162f75
1 to 4 of 4