it's not TBS driver fault, but Microsoft's - they removed BDA support for their Windows Server 2008 products (and so no any DVB card can work in such operating system), but there is a way to manually add it again:
http://www.msfn.org/board/topic/114549- ... 2a1ef6790eit's not as easy as it looks to re-add BDA support to Windows 2008 though, but if you do it right all TBS DVB cards will work perfectly well in that operating system. however, you don't need TBS, but more Microsoft technical support in the case.