This morning I fired my Windows XP VM on my mac and my keyboard input simply stopped working. After a couple of VM reboots, which had no effect, I did some googling. The first result suggested typing a few commands to determine what had disabled it: [code] $ ioreg -l -w 0 | grep SecureInput | “IOConsoleUsers” = ({“kCGSSessionSecureInputPID”=177,”kCGSSessionLoginwindowSafeLogin”=No,”kCGSSessionAuditIDKey”=0,”kCGSessionLoginDoneKey”=Yes,”kCGSSessionSystemSafeBoot”=No,”kCGSSessionOnConsoleKey”=Yes,”kCGSSessionUserIDKey”=501,”kSCSecuritySessionID”=11622192,”kCGSSessionUserNameKey”=”gregstewart”,”kCGSSessionGroupIDKey”=20,”kCGSSessionConsoleSetKey”=0,”kCGSSessionIDKey”=256,”kCGSessionLongUserNameKey”=”User”}) $ ps auxwwww | grep 177 user 177 7.8 9.2 652520 192788 ?? S 10:51pm 59:09.22 /Applications/Firefox.app/Contents/MacOS/firefox-bin -psn_0_110619 user 1155 0.0 0.0 599820 464 s001 S+ 10:44am 0:00.00 grep 177 [/code] According to the post the application that was blocking it was FireFox. “kCGSSessionSecureInputPID”=177 is the info you need to look for, where in my case 177 was the number I needed to use in the next command. Incredulous as I was, I closed FireFox and hey presto keyboard input was working again. Hopefully this post will help others.