Original post by: Joseph Eckstein ,
Here is a link to Dell's download page for your desktop. [http://www.dell.com/support/home/us/en/04/product-support/product/inspiron-580/drivers|Dell Inspiron 580 Driver Downloads] Under "Network" you will find the most recent version of the driver software for your computer. Download and install the driver for the card which you are experiencing driver issues with. If replacing/updating the driver does not solve your problem, it could be a problem with the hardware inside of your computer or the device that you are attempting to connect to.