ok found out that i had put the roof acessories on twice which when deleated made the artlantis file to 79Mb. can now render in larger size.
so whats the go with large files?
but still a little slow, and havnt started to add anything like textures/shaders/materials or objects
any options for making it a smaller file?
also, in archicad is there a way of adding ridge tiles without doing each ridge individually?
ie. something like the roof acessory where you just click on the roof and it adds them automatically?