I'm trying to play a game on Virtualbox that needs 512MB of video memory. So as suggested here I shut the virtualbox down and tried to increase the memory to 512MB using this command:
VBoxManage modifyvm "win7" --vram 512
But I get this error
error: Invalid VRAM size: 512 MB (must be in range [1, 256] MB) VBoxManage: error: Details: code NS_ERROR_INVALID_ARG (0x80070057), component SessionMachine, interface IMachine, callee nsISupports VBoxManage: error: Context: "COMSETTER(VRAMSize)(ValueUnion.u32)" at line 597 of file VBoxManageModifyVM.cpp
I'm wondering if there is any way to circumvent this 256MB limit, which is ridiculously low by today standards.