I have a Dell Dimension 4400 with 40GB c drive and 120GB F: drive. On boot up it takes 5-10 minutes before I can use it. Task bar has a few items on it, but not that many. Also takes 5 minutes to shut down. It is driving me mad. I have tried PC Booster software and it tells me the PC is running at optimum speed. Any other tricks I can try to get it to run faster? I did have the HD repaired once after a complete system crash. Could it be there are still damaged sectors on the C: drive and this is causing the problem?