virtualbox.org

I've got Windows XP 32bit installed as the guest OS on my computer, which is running VBox 3.2.10 for x64. Everything has been running perfectly for quite some time. Then today, I started my guest OS, and after the usual restoring progress box (my snapshot was created while the guest OS was running), nothing happened. If I click on the snapshot in the VBox GUI and then click "Show", I get a white box partially displayed in my screen. When I click on it, it then gives me the title bar, but the dialog contents are still white.

The VM is actually running, because I eventually decided to RDP to it, and it worked just fine. It's just that I can't access the guest OS via the normal GUI.

I can start up my other guest OSes and they work as expected. I checked the log file for the problematic snapshot, and there's nothing out of the ordinary (as far as I can tell). No errors at all. The last lines in the log look like this once the guest is started:

00:00:08.177 HGCM: restoring [VBoxSharedFolders]
00:00:08.177 SharedFolders host service: connected, u32ClientID = 19
00:00:08.177 SharedFolders host service: loading state, u32ClientID = 19
00:00:08.178 SharedFolders host service: success
00:00:08.178 HGCM: restoring [VBoxGuestControlSvc]
00:00:08.178 HGCM: restoring [VBoxGuestPropSvc]
00:00:08.178 HGCM: restoring [VBoxSharedClipboard]
00:00:08.178 Guest Additions information report: additionsVersion = 0x00010004, osType = 0x00033000
00:00:08.179 Display::handleDisplayResize(): uScreenId = 0, pvVRAM=0000000009b90000 w=1280 h=868 bpp=32 cbLine=0x1400
00:00:08.183 Changing the VM state from 'LOADING' to 'SUSPENDED'.
00:00:08.183 Changing the VM state from 'SUSPENDED' to 'RESUMING'.
00:00:08.183 Changing the VM state from 'RESUMING' to 'RUNNING'.
00:00:08.255 Display::handleDisplayResize(): uScreenId = 0, pvVRAM=0000000009b90000 w=1280 h=868 bpp=32 cbLine=0x1400
00:00:08.371 2D video acceleration is disabled.
00:00:13.255 PCNet#0: The link is back up again after the restore.

Very weird!!!

I have solved my problem, and figured I'd post it here in case anyone else ran into the same issue.

Since I had RDP access, I decided that I'd try to shut down the OS before starting up the VM again. After doing this and waiting a *long* time for the VBox GUI to acknowledge that the VM was stopped, I started it up again and it worked!

Phew.