Don't know if this is the right place to post about it but I use Emerald viewer and I crash just about every 20min or so in populated places, reg sl viewer I'm perfectly fine (I like using emerald viewer alot better and would be great help if there was some way to fix it) Ive also tried clearing cache
PC Specs:
Vista Home Premium SP2 32bit
Amd Athlon 64 x2 6000+ 3.2Ghz
3GB 533mhz RAM
xfx radeon hd 4870 1gb gddr5
everything is fully up to date