Hi Lingyu, The easiest solution is to not run Chimera inside VirtualBox, but run the native Windows version on Windows. The default VirtualBox graphics driver is inadequate. And in general, anything that hides the native graphics driver from Chimera will likely break Chimera. HTH, Greg On 02/22/2013 09:41 PM, Lingyu wrote:

Hi all, I have tried to open Chimera on Ubuntu 12.04 LTS system, which is installed under Win7 system through VirtualBox. The graphic card is from Nvidia company. And I've got below error: abc@ubuntu:~$ <mailto:abc@ubuntu:%7E$> chimera X Error of failed request: BadDrawable (invalid Pixmap or Window parameter) Major opcode of failed request: 72 (X_PutImage) Resource id in failed request: 0x480006c Serial number of failed request: 1444 Current serial number in output stream: 1450 Then I tried "chimera ! --debug-opengl", after I disable all OpenGL features, still it didn't work. Here is the OpenGL information generated by "Chimera Debug Graphics Driver" interface: OpenGL information: Vendor: VMware, Inc. Renderer: Gallium 0.4 on llvmpipe(LLVM 0x300) Version: 2.1 Mesa 8.0.2 OS: Linux 3.2.0-23-generic x86_64 I have seen a previous post "answerpot.com/showthread.php?4472311-Chimera+on+a+virtualbox <http://answerpot.com/showthread.php?4472311-Chimera+on+a+virtualbox>", which asked a similar question. Can this problem be solved? Thanks in advance! Lingyu