Hi MrArtVandelay,
Glad you got it sorted out ok. Thread is ok to be left as it might help other members
I don't know if Poker770 has any specific rules on this, but poker rooms in general usually allow 2x people from the same household to play as long as they play on their our accounts (i.e. don't share accounts), they both provide ID to prove they are different people and most importantly, you will be unable to sit down at the same cash table or enter the same tournament.
Always worth a quick email to the poker rooms support team however, just to ensure that they are aware of your situation and don't inadvertently block both accounts in error.
Good luck & enjoy your poker.
Best regards,
Bart