I wonder if anyone can give me any advise with regards to my inspiron 530. Recently I attenmpted to use a new memory stick but the computer did not seem to recognise it. When I attempted to download/install driver I received the message that the computer had encountered an error while attempting to install it and that access was denied. I received error message code 28, but that was no help as that suggests downloading driver.... My old memory sticks still work but no new ones or any other storage devises now when they used to. Help?