Hello JoacimW1, please shut down Windows (as opposed to simply suspending it; see http://bit.ly/1OfR3td for details), open the virtual machine configuration window (refer to http://bit.ly/1eQU5lF for assistance), navigate to Hardware -> CPU & Memory and allocate 2 processors (or just 1 if the total number of available processors is just 2) and 2 GB of memory for Windows [or just 1 GB if total Mac memory is only 2 GB (or) 3 GB if total Mac memory is 8 GB (or) 4 GB if total Mac memory is > 8 GB]. Then, select 'Graphics' and allocate 1 GB of video memory for Windows. Finally, ensure that 'Vertical Synchronization' is enabled and 'DirectX 9' is selected for '3D Acceleration' under 'Advanced Settings' and close the window. Thanks!
If I change to directx 10 it works. question should I really only use 4gb memory and 2 cpu when the computer have 8 cpu and 16 gb ram? I am running sql server, visual studio and other demanding software under windows?