When i got my BMD i had some similar problems like other guys here.
I installed and did the configuration by their recommendations from videos and pdf. For 3 days it was a fight with the software i had 2000+ working pligg sites with 4 accounts each. Everything worked perfect with registration and stuff but when i started to submit bookmarks i had a big fail, only 200+ bookmarks successes.
I asked for a support and they was really fast answering to my tickets, they tried to register and submit with some of the websites that on my machine BMD failed and they success with registration+submission.
After 3 days i decided to re-install my windows and after that everything is working PERFECT. I have like 75% success rate.
Like many guys said:
1) Use proxies
2) register at least 10 accounts (don`t use yahoo emails special yahoo.co.uk. use gmail or pop accounts)
3) try to make usernames to look real like "jhondoe80" and not "jhnjksll"
4) don`t process the emails with BMD function, do it manually (they still need to work that part)
5) use camouflage ( i am not using it at the moment, still need to learn some things about this feature)
6) use decaptcher (you will spend some money here but only when registering the accounts because on submit bookmark part just few of them use captcha)
7) use a good antivirus
8) USE PROXIES!
Hope that it helps. Ill come back soon with more things about it.
OVERALL IS A GREAT TOOL. ONCE YOU LEARN EVERY TRICK THIS BIG SOFTWARE WILL BE A FORTUNE. (true that they need to improve some things there, i am trying to create an email for them with modifications/changes recommandations. If someone have something in mind just pm me and i will put that in my email)