Strange textures and shadows

Hello, I’ve got very strange problem because water isn’t reflecting objects, shadows are strange and other strange things happend, I’ve got the screenshots of problems:
It happen when something attack me
These are that strange shadows
It is how water looks like
And this is what is under water
My options menu is also strange : /
And while initialisation? game data this shows up

I cleaned up my gmod folder and it all happend after doing it. When i cleaned up it again nothing changed (I’ve still got problems)
And i’ve got:
OS: Windows 7 Proffesional
Processor: Intel core 2 quad Q9400 2.66Ghz
Memory: 4GB Ram
Video: Radeon HD5770 (Vapor-x model, 1GB)
Im sorry for my bad english - I’m not native speaker.

Tried forcing Gmod into DirectX 9? Looks like your trying to use DirectX 10.

It helped, thank you so much but now I’ve got another problem (i don’t know if I had it before (before - when i had shadows, texture, etc. problems), i can’t use my mouse roll to change weapons, probably i have to change something in options but i haven’t found it out yet, can you help me? ;]


Ok, do not look at my previous post, the only i have to do was reopening Gmod xd