On start-up, my computer says that one of your disks needs to be checked for consitency. But when it tries to 'check disk' it says it can't because of error:xxxxxxxxx (was too quick to catch the numbers). So I tried to check disk through control panel and it says that it can't because disk is being used. So its a vicious circle that I can't seem to get out of. Any help would be appreciated... Computer works fine though, strange!