I have an HP pavillion laptop with vista as the OS. Since a couple of months I have been having a problem with external USB hard drives. Whenever I plug them in, windows tries to install the driver but fails everytime and just says that the device wont work. I used to think probably thats coz of vista compatibility issues. But a couple of days ago I bought a Western Digital 120GB USB HDD and the same problem repeated. The problem is that the same Hard drive got installed seamlessly on a friends laptop with vista....thus ruling out Vista compatibility issues. I am Guessing there is a problem with the drivers. Another problem, which I think may or may not be related is that since a couple of months my Auto play has not been working for any device i.e. DVD/CD/USB pen drive etc.... Tried a lot of ways to solve the issues but nothing seems to work.... tried registry entry tweaks but to no avail.... Really frustrated with this problem.... Can you please suggest a way out. Thanks.