oclHashCat-plus64 MD5(unix) cracking help

[TrAnn3l]

I tried the same hash you had, didn't crack it too, but then i tried it with a other command.
i cracked the hash, using

Code:

oclHashcat-plus64.exe -a 3 "hash.txt" ?a?a?a?a?a?a

well, i think there is a difference between using bruteforce only with -a 3 ,
and using it with the mask ?a?a?a?a?a?a (a stands for ?l?u?d?s). i don't know why, but maybe Atom can us say what is here going on.