rdesktop clipboard shortcuts problems in xfce

[Linos]

Hello,
	i am using xfce 4.4 in gentoo with thunar, i have a problem with 
rdesktop, when i use ctrl+x o ctrl+c inside rdesktop to copy files to 
the clipboard in the remote windows machine the clipboard is cleaned in 
0,5 seconds or about, if i use ctrl+x i see the file loss color (because 
i am going to move to other side when i paste it) and restore his color 
in less that a second so i can not use the keyboard to do this 
functions, if i revert to gnome i have no problem with that, can anyone 
help me find a solution/workaround? Thanks in advance.