PzC/MC/ACW Windows 7 troubles

[Fubar]

Hi guys i dont know if anyone can help me?

I've just upgraded my PC and it came with Windows 7 installed, previously i used XP Pro, and i'm having a few problems with all the titles from the HPS PzC/MC/ACW ranges.

Firstly when i install the games it cant install DirectX, even though its already installed when i installed Shogun 2 Total War, then when i try to play the games it starts fine but then when i try to click anywhere on the maps the whole game interface goes wierd, whole sections vanish or just turn white!

I've tried looking on the HPS Windows 7 help section but none of these problems are listed there, i also tried things like playing the games in windowed mode and that made no difference!

Does anyone else have similar problems or know of a fix?

Thanks in advance for any help.

TTFN Matt