id summary reporter owner description type status component version resolution keywords cc guest host 3646 Virtual machine freezes upon mounting iso file when serial port is enabled Axel "When a serial port is configured in the guest (Windows Server 2003 Standard) as host device (host: Windows7 Beta build 7000) the virtual machine crashes upon maounting an iso file as the CD in the guest's CD-ROM. This happens when the machine is ON only; when it's off everything works fine. My Serial Port configuration is as follows: Port 1 enabled Port Number: COM1 IRQ: 4 I/O Port: 0x3F8 Port Mode: Host Device Port Path: COM3 When I enabled the Serial Port I had to install the hardware in windows 2003, it was not autmatically recognized. Everything seems to work fine as long as I don't load any ISO image." defect closed other VirtualBox 2.1.4 fixed serial port freeze iso mount cd-rom cd rom Windows Windows