I cant see explosions bigger than the RPG explosion

HELPP I can’t see explosions like gbombs 3!! =O OS vista buisness My graphics card is nvidia 9600! 3.00ghz DUAL CORE ! but I can’t see them! Can only see explosions like the RPG or normal hl2 nade… I tried reinstalling gmod but ddnt work! I shoot a nuke, I died no reason. =.= HELP my old comp which was only 2 ghz nvidia 6000 somethin can see but will crash pls help

the answer is simple

delete your garrysmod folder.

I did that but still ddnt work! =O

increase the settings of you graphics card. (Not in game, but in the graphics card menu.) See if that helps.