I have a Windows server running at home and need to access and administer it remotely from time to time. The app store RD client works fine on the iPhone but for real work need a laptop, for which I usually had my Zenbook. Now I want to use my MBA2 and the app store RD client also works great on it. But how can I crtl-alt-delete the remote PC with the Mac keyboard? I see ctrl and delete and will assume (mistake?) that they are mapped the same as Windows PC. But what key does the alt?