Gateway MX3215 Notebook "dell dock went away" Questions

...went to control panel, then display, then settings, and clicked on troubleshoot. Immediately the brightness came back and all is well. Shut down and rebooted and all is still well. When the following ...

...Dell Latitude D800 I've had for a few years. It's got 1GB of DDR RAM (2 512 sticks), and I haven't made any hardware changes since I purchased. Lately I've been getting the dreaded blue screen. I've ...