I would have to check my logs if it is the exact same issue. Did you install you SQL data & logs on a partition other than C:?
I did notice this similarity between our installs - a seperate install of SQL.
Question for lansweeper: Hace you seen sucsessful installs on w2k8 r2 64bit where lansweeper installs the db for you? Why did mine fail?
I had to uninstall and reinstall after this. I downloaded SQL express afterward, installed it the reinstalled lansweeper.
What logs can I provide?