Wyse T50 copy paste problem between sessions

Hi

we have a 45 wyse thins T50 client (ubuntu enhanced)

the problem is that the copy paste fonction broken between RDP and ICA sessions 

if that didn't solved we look for other manufacture coz there no problem with other clients (V10L/LE) it's only with the T50

so any solutions for this problem coz it's really an major problem for our workers thanks .

WYSE T50 UBUNTU ENHANCED LINUX

software installed :20120203-0_U-1.041_T50_ (the last one)