Dear all, I installed NS-allinone-2.33. 1. When i open terminal i get Notification: "bash: /home/thangnd/ns-allinone-2.33/lib: is a directory bash: /home/thangnd/ns-allinone-2.33/tcl8.4.18/library: is a directory" above of terminal window (thangnd is my username on ubuntu 9.04). 2.When i enter command: cd /home/thangnd/ns-allinone-2.33/nam-1.13/ex then enter: nam lan.nam to test and get notification: nam: [code omitted because of length] : no event type or button # or keysym while executing "bind Listbox <MouseWheel> { %W yview scroll [expr {- (%D / 120) * 4}] units }" invoked from within "if {[tk windowingsystem] eq "classic" || [tk windowingsystem] eq "aqua"} { bind Listbox <MouseWheel> { %W yview scroll [expr {- (%D)}] units } bind Li..." Please help me about this issue. Thanks.