**System Information**
Windows 7 64 bit Core2Quad CPU Q9300
Asus P5Q
AMD Radeon HD 7770
Driver version 15.30.1025-151117a-296575C
Open CL Version 2.0.4.0
Open GL Version 6.14.10.13416
**Blender Version**
27.6b
Broken: (example: 2.69.7 4b206af, see splash screen)
Worked: (optional)
CPU Rendering works fine
**Short description of error**
GPU Rendering is stopped after BVH Tree Building with following error message:
Open CL Error (-61) : CL invalid Buffer size in cl create buffer