Hi everybody!

Can somebody explain,   which size of buffer REALLY needed for DAG in video-memory?
During two days  I can't to start the miner on MSI R6970 Lighting, with 2gb vram. All time the same error of "can't allocate big buffer".

Here is bat file:
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100

EthDcrMiner64.exe -mode 0 -allcoins 1 -epool eth-ru.dwarfpool.com:8008 -ewal **** -epsw x -eworker 1 -dpool http://dcr.suprnova.cc:9110 -dwal ******* -dpsw x  -etha 1 -esm 0  -dbg -1 -dcri 27

On another card with 2GB EVERYTHING works perfectly.

Any advise, what to try...