no mater hwta i do i constantly lag and dc every 10mins. it only does it with ffxi. i play maplestory fine and i play wow on ultra grahpics settings go into a busy city and it doesnt lag at all but yet i tryed everything i could find online to sort the problems with ffxi and no luck any sugestions.
im running:

windows xp
5.4 dual core 64bit amd
asus crossfire mobo
twin ati hd 2900 pro graphics cards
4gb of ram
5.1 hd sound card

dont think you need any other info but if ya do let me know