|My HOME and END keys don't work on putty cio_test.o, but they all work well on visual studio when I run consoleTester.cpp. I have no idea about why they don't work on putty. When I hit HOME or END, there is nothing changed. Please help me :( ....Ran|| Have you setup PUTTY's keybord before you logon matrxi using putty? if not, please see 'Notes' item aboved in this page.--hqiao3<br />Thank you. That's the problem. --Ran