KrystalBrown Unplugged

I signed into second life one day and it asked me if i wanted to add updates to second life. I didnt think nothing of it so i accepted it. Now everything is slow, shakey, grey, and takes so long to load. Also, the destination guide is different from what Ive used and I just want my old viewer back. I dont know which viewer it was though or if it is even the same one just with added updates that I dont want anymore. HELP please. I havent played in 3 months or so because of that!