Fix for the "Old Video Drivers" error in nVidia's latest

Getting "Old Video Drivers" for the latest nVidia drivers? Here's the fix!

In the latest drivers released by nVidia for Vista, the 6 in their display drivers changed to a 7, and the other digits got reset, and since the first digit was being ignored, it made torque think the drivers are older than they really are.

Found in comment: "where the #s we care about are the last digits" - yeah, famous last words. I'm surprised a fellow programmer actually thought the first digit was unimportant :(.

Well, anyways, here is the fix:

In DXDiagNVUtil.cpp:

Find the "DXDiagNVUtil::GetDisplayDeviceNVDriverVersion" function, and replace it with this:

HRESULT DXDiagNVUtil::GetDisplayDeviceNVDriverVersion( DWORD dwDevice, float * fVersion )
{
	HRESULT hr = S_OK;
	FAIL_IF_NULL( fVersion );
	*fVersion = 0.0f;
	wstring wstr;
	wstring majorVers;

	hr = GetDisplayDeviceDriverVersionStr( dwDevice, & wstr );
	MSG_IF( FAILED(hr), "GetDisplayDeviceNVDriverVersion() couldn't get driver version string\n");
	RET_VAL_IF_FAILED(hr);

	// nv driver string will be something like:  "6.14.0010.5216"
	size_t pos;
	pos = wstr.find_last_of( '.' );
	majorVers = wstr.substr(0, pos);
	wstr.erase( 0, pos );
	//FMsgW(L"wstr: %s\n", wstr.c_str() );

	// decode the string
	// multiply by 100 to convert .5216 into 52.16
	// and add back in major version number
	// " - 6.0f" for compatibility reasons:
	// older versions of this code didn't add back in the major version number
	if( (float) hackWToF( majorVers ) >= 6.0f )
	{	
		*fVersion = (((float) hackWToF( majorVers ) - 6.0f) + (float) hackWToF( wstr )) * 100.0f;
	} else {
		*fVersion = (float) hackWToF( wstr ) * 100.0f;
	}

	return( hr );
}