General :: Running NAM 1.13 In NS Using Fedora 11?

I am trying to run nam 1.13 in ns in Fedora 11. But I am facing the problem
[root@localhost Download]# nam
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..."