There seems to be a problem on dA with flash ads messing with your computer by redirecting you to a blank page/pop up of an involuntary virus scan. Never engage in this pop up. Even clicking the 'x' to close the window might risk sneaking you a trojan virus. To close this window safely, be sure to do this via your
task manager.
Get the Firefox addon that will block these nasty flash adds: [link](It will also save you from epileptic seizures)

For more info, read ~
L-3X's journal by clicking the header.