I completed the quest and a while later went to new vegas to buy it off the kid, it fired once fine, but didn't recharge for days(and yes I diverted the power to the ARCHIMEDESII, but now whenever I try to fire it, it just goes through the lock on sequence, wastes a charge, and continues aiming the 3 lasers on the ground wherever I go just to fade and restart when I'm not ever wielding it.

anyone know of any bug fixes for this in the nexus? because I haven't found any. would really appreciate the ability to use this weapon

http://www.newvegasnexus.com/downloads/file.php?id=38256

It's also included in the Community Bug Fix mod.