When I want to install 3CXPhoneSystem5 i have some bug. First veriffing, next unpacking, and i see window with os - nothing more. Program end. Why? I'm use WinXP Home on Pentium D 3,0 with Sata Raid mirror, WindowsXP PRO on VMWare (this same comp) and Win XP PRO on my laptop. Verifing, extrackting, window with system names, ending. My antivirus software is Off, Windows DEP is off. Sombody now why? Please help!