in my freinds system beast lightmap works perfect (vga=Gforce 8800).
but in the same project in my own system(vga=Gforce8500) , beast show me an error:
" beast lightam[ error: 5 : error in object state" or some thing like that,
the question is : are the beast lightmap system need special system to process enviornment?
Lightmapping performed by Beast works entirely on the CPU, so it doesn't depend on the model of your graphics card. For huge scenes Beast might require quite a bit of memory, but I'd guess that this is not the problem in your case.
Anyways, error #5 does not sound too informative, so please submit a bug report via Help -> Report a Problem with a simple project that reproduces the issue. We will really appreciate that, thanks!