virtualbox.org

Although guest additions are available from the Mandriva 2010 repostory, they were not installed. I have since installed them from within VirtualBox.

May I please ask you to clarify something for me?
I specifically named the Machine and HardDisk files for my Windows XP client in one of my earlier replies. The reason was that I wanted to estanblish exactly what :

VBoxManage showvminfo <VM Name>

qas looking for. That might help me to pin the problem down.
Thanks for your help. Regards, Alan

VBoxManage showvminfo <VM Name>
<VM Name> = Virtual Machine Name which you stated as WinXP_PRO

You can run VBoxManage list vms in a terminal to see what the actual names are, assuming this works.

I think that when you get the command to work everything else will fall in place.
Oh and one other thing. the command id that I sent you earlier is lowercase. This when typed from a terminal will show what groups you are assigned to.
You must be at a $ prompt to see what groups your login is assigned to.
If you are at the # prompt this will show the root users groups.

That was incredibly helpful. As a result here is the result of:

]$ VBoxManage showvminfo WinXP_PRO

But I cannot see anything that indicates why I get a reboot (or a freeze in 3.1.2) when I run a Clipper 16 bit program from WinXP_PRO under VirtualBox (!)

VirtualBox Command Line Management Interface Version 3.1.2
(C) 2005-2009 Sun Microsystems, Inc.
All rights reserved.

Name: WinXP_PRO
Guest OS: Windows XP
UUID: a105edfd-a881-4d79-bc3c-a9acf20a6282
Config file: /home/alan/.VirtualBox/Machines/WinXP_PRO/WinXP_PRO.xml
Hardware UUID: a105edfd-a881-4d79-bc3c-a9acf20a6282
Memory size: 512MB
VRAM size: 20MB
Number of CPUs: 1
Synthetic Cpu: off
CPUID overrides: None
Boot menu mode: message and menu
Boot Device (1): DVD
Boot Device (2): HardDisk
Boot Device (3): Network
Boot Device (4): Not Assigned
ACPI: on
IOAPIC: off
PAE: off
Time offset: 0 ms
Hardw. virt.ext: on
Hardw. virt.ext exclusive: on
Nested Paging: off
VT-x VPID: off
State: powered off (since 2009-12-20T23:17:04.000000000)
Monitor count: 1
3D Acceleration: off
2D Video Acceleration: off
Teleporter Enabled: off
Teleporter Port: 0
Teleporter Address:
Teleporter Password:
Storage Controller Name (0): IDE Controller
Storage Controller Type (0): PIIX4
Storage Controller Instance Number (0): 0
Storage Controller Max Port Count (0): 2
Storage Controller Port Count (0): 2
IDE Controller (0, 0): /home/alan/.VirtualBox/HardDisks/WinXP.vdi (UUID: 6a62421e-5f5f-4e36-ba6f-7b2a87f74d83)
IDE Controller (1, 0): /opt/VirtualBox/additions/VBoxGuestAdditions.iso (UUID: 4e87fe71-ca09-49dd-b525-aa28f9b596ce)
NIC 1: MAC: 080027444A04, Attachment: NAT, Cable connected: on, Trace: off (file: none), Type: Am79C973, Reported speed: 0 Mbps
NIC 2: MAC: 080027F9A313, Attachment: Host-only Interface 'vboxnet0', Cable connected: on, Trace: off (file: none), Type: Am79C973, Reported speed: 0 Mbps
NIC 3: disabled
NIC 4: disabled
NIC 5: disabled
NIC 6: disabled
NIC 7: disabled
NIC 8: disabled
UART 1: disabled
UART 2: disabled
Audio: enabled (Driver: ALSA, Controller: AC97)
Clipboard Mode: Bidirectional
VRDP: enabled (Address 0.0.0.0, Ports 3389, MultiConn: off, ReuseSingleConn: off, Authentication type: null)
USB: enabled

USB Device Filters:

<none>

Shared folders:

Name: 'alan', Host path: '/home/alan' (machine mapping), writable

Guest:

Statistics update: disabled

Try it with VT-x/AMD-v turned off in the guest settings.

No improvement I'm afraid.

Clipper by default uses a keyboard polling system (int 16h) that loops constantly and hugs the processor, you'll need something like tame-res or build your own keyboard handler and rebuild.

Right now I am running it under VirtualBox / XP on my office machine with no ill effects.Prior to that under VMware/XP and prior to that with win98/Win4lin on several machines so I don't think that is the cause of the problem. Someone suggested that I run the program from DOSBox. It worked without a hitch. As soon as I can customise that, I guess that wil have to be the way for a while.

Thanks everyone. Disappointing but thanks anyway.

Have a good holiday and a Happy New Year.

Alan