On Intel Core-processor based systems with HD3000 graphics, you can connect one external monitor at a time in addition to the built-in LCD panel. The external monitor can be connected by WiDi or by cable, but not both at the same time. Hope this helps.
Contrary to this statement, I had 3 displays working with WiDi. Laptop screen, wired monitor, and WiDi. All these displays were extended (seprate) and worked fine. Until the new software and firmware update. Now I get a Microsoft Visual C++ runtime error when all three are connected due to the mouse pointer being enabled. Now i can no longer get the pointer working on the 3rd WiDi screen. I am quite annoyed that it worked fine before and the update screwed it up. It works fine with just 2 displays but not 3. Can anyone help me on this or is their any planning to support multiple displays in the future? It worked perfectly when I had it set up originally.