i'm new user to NS2, i have installed the NS2 "ns-allinone-2.31" package under the shell of Cygwin over windows xp and there is no problem appeared in the installation
but when i try to run a ns program this error appear $ 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..." where is the problem? is the problem from the source of "ns-allinone-2.31" or the problem in the installation of the NS "ns-allinone-2.31" package or the package is not complete and how can i solve this problem I have installed the Cygwin and NS2 3 times and it took along time :'( so please help me thanx for your help pavan