I fixed this issue myself....This is tested in live production envoirnment....This is a non-impacting change to users but every network is different so make sure you know the potential impact....
Answer/Resolution: Need to force the Java client...
Configuration > Remote access VPN > clientless SSL VPN Access > Portal >bookmarks > click edit
rdp://your internal address/?geometry=1280x960&bbp=16&ForceJava=yes
also change the Access control list associated with it....
Configuration > Remote access VPN > clientless SSL VPN Access > Advanced > Web ACLs > edit
rdp://your internal address/?geometry=1280x960&bbp=16&ForceJava=yes
rdp2://your internal address/?geometry=1280x960&bbp=16&ForceJava=yes
Thanks,
Syed.