Okay, I have a problem running Windows 3.1 in the latest version of VirtualBox (v4.3.10). When I run Windows 3.1 using the patched generic SVGA drivers, VirtualBox crashes and throws this error message: To make matters worse, my Windows Vista host PC even froze for several minutes before I got a chance to use Ctrl-Alt-Delete to stop a non-responsive VM. The current settings that I have configured are the following: MS-DOS 5, 8 MB memory, 1 MB VRAM, 1 GB SCSI hard disk and CD-ROM, Windows DirectSound, SoundBlaster 16 and a AMD PCnet-PCI II NAT adapter. Windows 3.1 with the Generic SVGA drivers works well in Standard Mode, but doesn't work correctly in 386 Enhanced Mode and crashes. I recall that I used to sign-up for the VirtualBox forums years ago, but Oracle acquired VirtualBox from Sun and introduced a single login and now...I can't use my acocunt in the VBox forums anymore. Hopefully, someone will file a bug report to see what could be wrong here. I'm wondering if this is a bug with the Generic SVGA drivers not cooperating in the latest version of VirtualBox or not and that there is a workaround to it. Should I post the CONFIG.SYS and AUTOEXEC.BAT settings and determine what could be wrong with it? If not, then I will end up removing Windows 3.1 from the hard disk image until this issue gets fixed.