My computer does not recognize my cd-rw and dvd drives. In device manager, they have the highlighted exclamation mark. I have tried to delete the drives and reboot, but it didn't work. The only solution I have found so far is to system restore, but then the drives only work until the next day or so. I haven't moved the computer recently, the only changes I can think of may be installing norton, uninstalling adaptec easy-cd creator, and windows and mcafee updates. I am not very familiar with computers. Please help me with this problem. Thanks.