Emperor: Battle for Dune Multi unit Lag

Kay so this topic has been on a few other forums around the internet but I haven't been able to find a solution for it.

The Problem:
Emperor: Battle for Dune installs and runs fine on windows 7 machines, until you select multiple units. For some reason this causes intense video lag, and then hyper speed until the game returns to the time it should be at.


The following fixes do not work:
-Adjusting in-game graphics settings (including v-sync)
-Running in compatability modes or as admin
-disabling secondary monitors
-updating graphics card drivers
-changing to single core mode using affinity in the task manager
-re-installing the game
-running from CD or ISO on virtual machine

Machine:
According to other forums this problem occurs across all types of machines, the common factor seeming to be Nvidia graphics cards. But for argument's sake I'll post my specs.

L1N64-SLI WS Mobo
2x Athlon 6x fx dual core (socket L1)
8gb Crucial Ram 800 mhz
BFG 8800 GTX water cooled edition
1000 watt OCZ PSU
400 gb seagate sata HDD
G15 Gaming keyboard
Razer Lachesis
Dual Monitor (20" Crt/22" LCD)

If anyone can conjure up a fix for this I'd be greatly appreciative.

Bump

I've tried all gameplay modes with no change and it works fine with Nvidia cards on XP sp2 and 3. It just seems that Windows 7 + Nvidia cards causes this rather strange problem.

Your idea of alternate OS install would definitely work, but I'd rather not have to dual boot for one game.
Thanks for the input though, every bit of info helps.

Update your keyboard and mouse drivers, uninstall any codec packs on your PC and media players too (apart from WMP). Update DirectX.

It was a fresh install of 7 so I had installed the latest drivers for all my hardware about two days prior, I've loaded no codec packs and Direct X is the most recent version. Problem persists.

If you really want it working, try a dual boot setup just for diagnosis. If it works under your alternate operating system then you know the culprit.

I already know it works on alternate OSes. As my original post states this only seems to happen on Windows 7 machines with Nvidia graphics cards, hence posting the problem on the windows 7 forums.

As I have also stated in a previous post I'd rather not have to dual boot for one game.

Yes, you said it works on different machines, but not on a different OS on your particular machine. Since it works perfectly on mine as well as other people I've talked to that run Windows 7 with nvidia, there may be something specific to certain machines rather than an operation system issue. I know you'd rather not dual-boot but it might be the best way to diagnose this. Who knows, you might find you prefer a linux-based operating system...

Just trying to help. No need to flip out.

First off - not flipping out

Secondly - The game ran fine on both XP and Vista with no hardware changes. As afore mentioned other forums around are posting the same problem with the apparent common factor being Nvidia cards and Windows 7.

You can check out the dune 2k forums for more info.
Linkage - Old problem with Emperor on Windows 7