NU16 indicated that I needed to repair my disk - utility ran on my OS disk on reboot - utility found no errors, but at the end of the process it hung with the message: 'Cannot load Job Group Batch / File = / Cannot load Norton Disk Doctor tasks queue XML file. It is possible it is corrupted'. Now each time I start my computer the repair disk utility runs with the same error message at the end of the process. I have tried rerunning the repair disk utility in the hope that this would clear the problem, but it has not. How can I resolve this error? Grateful for any solutions.