Millisecond Forums

I want to randomize the order in which the blocks appear. But some videoblocks appear more than once. For example video01 is shown 4 times while video45 and video47 are not shown even once. It seems that the noreplacenorepeat is not working properly.
So far i got:
<expt instruct>
/ blocks = [1=text1; 2=begin; 3=test; 4=begin2;
5-54 = noreplacenorepeat(
video01, video02, video03, video04, video05, video06, video07, video08, video09, video10,
video11, video12, video13, video14, video15, video16, video17, video18, video19, video20,
video21, video22, video23, video24, video25, video26, video27, video28, video29, video30,
video31, video32, video33, video34, video35, video36, video37, video38, video39, video40,
video41, video42, video43, video44, video45, video46, video47, video48, video49, video50);
55=filler;
56=begin3;
57-106 = noreplacenorepeat(
videor101, videor102, videor103, videor104, videor105, videor106, videor107, videor108, videor109, videor110,
videor111, videor112, videor113, videor114, videor115, videor116, videor117, videor118, videor119, videor120,
videor121, videor122, videor123, videor124, videor125, videor126, videor127, videor128, videor129, videor130,
videor131, videor132, videor133, videor134, videor135, videor136, videor137, videor138, videor139, videor140,
videor141, videor142, videor143, videor144, videor145, videor146, videor147, videor148, videor149, videor150);
107=end
]
</expt