Android Nakajima

My computer seems to be doing the exact same thing.. Only, when i go into normally populated sims, like RP sims and what not, my whole computer freezes, and i have to restart my entire computer. Nothing else is making my computer freeze. Only when i am on SL. >:[ I honestly think there is a bug that is making this happen. I try and use firebird, and it frezzes as well. Infact, all the viewers that i've been using freeze my computer. Switching viewers is useless for me. I even cleared my cache, uninstalled Phoenix and all the other viewers [just to see if it was all the viewers i had installed doing the problem] and reinstalled only phoenix, because god knows Fire bird and other v2 viewers make me claustrophobic. It seems i can only be in a completely empty sim in order to NOT freeze. LL needs to fix something in their viewers, because this is just rediculous.