post processing features doesn't work + another weird problems

[howhigh1337]

hello everyone. First of all i want to say that im pretty new to source engine (came from gold-source :)).
Im launching garry's mod (1024x768 full screen):
- post processing features such as dof, bloom, doesn't work (just nothing happens when im activating them).HDR and bloom is activated. here is screen of super dof
[img]http://i2.fastpic.ru/big/2010/0308/a7/b958b0d55feefce68ccf28d4486baaa7.jpg[/img]
- fire is invisible (can't see, but hear sound of it) and my models quality is bad. example, look at terrorists legs texture
[img]http://i2.fastpic.ru/big/2010/0308/81/3e0d40074f45fcc4f2aa0def31e8c981.jpg[/img]
- blood replaced with strange shit
[img]http://i2.fastpic.ru/big/2010/0308/d9/8b5bafd45bb732f86af6bd518f0d55d9.jpg[/img]
- garry's mod launching extremely long (few minutes)
- i can't see NOTHING under water

I want to add that i tried to remove my cfg folde to reset all settings and css stress test showed me 99 fps

my hardware:
processor: intel pentium 4 cpu 3.0
RAM 1.5 gb
videocard: radeon x1300 256 mb
operating system is Windows XP
version of DirectX is 9.0c

thanks in advance for help.

[editline]05:04PM[/editline]

lol, -dxlevel 80 solved everything except slow launching.

[DrMelon]

Your graphics card is utterly terrible, as is your processor. That's the problem.