I built two different releases of the 2.6 kernel using the same config file, a 2.6.6-rc2 and a 188.8.131.52. I realised that with 184.108.40.206 under moderate hardrive load, the system is laggy. Under heavy hardrive load, the system almost freezes. These symptoms are not present when using the 2.6.6-rc2 kernel. Could this be due to significant IDE changes between these kernels?