So i've never had a problem with second life unitl now.. when I updated the viewer I started getting random BSOD saying driver_irql_not_less_or_equal. It's hard for me to believe that it's a hardware problem, cause my computer has been whitstanding way heavier games than SL without even lagging. I've tried updating drivers, scaning and deleting all malware and virus , redownloading the viewer but all it helped was to keep me playing longer and after an hour... BSOD again. I've increased the cache and lowered the graphics but still nothing. Here are my PC stats. Intel® CoreTM i7, 3630QM , 22 nm , 2400 MHz Cache: 6144 KB RAM: DDR3 , 8 GB ,1600 MHz Nvidia GEforce GT 635M 2GB