I have been using a Dell Studio 1558, without any issues so far. However, for the last 2 days, my Dell touch-pad has not been working. I have tried uninstalling and re-installing the drivers. I have taken the drivers from the driver disks that came with my laptop as well as the drivers from the dell website. I have also tried using system restore to roll back to a time much before the problem had started to appear. This has not resolved the problem as the touch-pad is still not working. On checking in the Device Manager, the device is not normally visible. when all hidden devices are seen, the Dell Touch-pad icon appears with a yellow exclamation mark. The error code shown is "This device is not present, is not working properly, or does not have all its drivers installed. (Code 24)" I have tried to update the driver from the device properties, but i get a message that the latest driver is already installed. I am unable to diagnose the problem. Please help.