Concerning the "unit flipping" issue, I seem to have the same problem with the 3D units. I have just updated my DirectX and the driver for my video card (Mobile IntelĀ® 915GM/GMS,910GML Express Chipset) but the problem persists. As you have said Hubert, the units with default facing are OK, and the ones with opposite facing are messed up.
Is there any hope to fix this? How about the option to turn off the mirroring, just keep the default facing?