nope! computer A is a P3-1ghz, computer B is a brand spankin' new P4 2.2ghz ! (also keep in mind that the files are always on comp B, even when i run flashfxp from A, i'm still transferring the files from B to the XBox)
comp A is running WinXP Professional while comp B is running WinXP Home - but i'm not sure why that would matter for this speed thing