You might want to check out this KB article on scaleability and SQL Server 2k when AWE is enabled. Don't know if this is the fix your looking for but...

Sure the KB is KB884020 or just go here.

http://www.microsoft.com/downloads/details.aspx?FamilyID=17D997D2-5034-4BBB-B74D-AD8430A1F7C8&displaylang=en

Hope it helps.

We had slightly similar problems with Citrix timing out or booting folks off the application, or just running slowly. We traced it back to XP SP2 and the changes to...

Steve Jones created a DTS package called PushFTP to accomplish this very task.

Check it out here  :

http://www.sqlservercentral.com/columnists/sjones/pushftp.asp