Pharazon

i'm a new SL player, but seem to be have a problem after i crash... as far as i understand it crashing is part of the game, but whenever i come back after a crash i find i've lost some functionality. i have no ability to stream music, or use voice. the icons are faded out. altough i am a member of groups, when i go to groups in the contact tab it says 'none', and finally, i can't teleport to other sims. i can teleport around the current one fine, but whenever i try to go to another sim it just crashes, telling me i have mee logged out/.. in terms of my specifications, it's an fairly old pc.. P4 3ghz, 2gb ram, ATI x800 gfx card, windows xp... the thing is it works absolutely fine untill it crashes and then it's a nightmare. i've tried clearing cache, deleting all files, uninstalling ,etc all without sucess. i've tried different viewers and run into the same problem. does anyone have any suggestions?