The gloomy clouds shrouding the housing market continue to cast their shadow. Nationwide report that house prices fell by 0.5% in February, for the fourth month running.Hoverer, measured on an annual basis, house prices are still rising by 2.7%. This is the lowest annual growth rate since November 2005. Less than a year ago house price inflation was 11.1%.Adding to the gloom, the Land Registry report that the total number of houses sold in November 2007 fell by 20% compared to November 2006.Nationwide, whose job it is to sell mortgages, publicly...