Gmod 13 Blue screen

[snkr]

Everytime I start Garry's Mod 13 I always get a blue loading screen and If I do F11 and close hl2. I get hl2 was unresponsive and then a "Engine Error: couldn't load library client". I always get this also when I change the GarrysMod folder name in SteamApps>common. Then I get "failed to start game (missing exectuable)".

Things I tryed
-Restarting Steam
-Reinstalled Garry's Mod 13 - 5
-Verify Game Cache
-Restarted Computer
-I don't have a anti-virus

OS:iMac
Graphics Card:ATI Radeon HD 2400

[snkr]

That's sad nobody is helping me?

[Chas.]

It's sad that you provide no information at all regarding your system specifications.

Your OS is not "iMac". Tell us your system specifications and you might get help.

[snkr]

Messaggio originale di =OTS= Mark Dacascos:

It's sad that you provide no information at all regarding your system specifications.

Your OS is not "iMac". Tell us your system specifications and you might get help.

You're avatar suits you're comment.

[Chas.]

Messaggio originale di °Д°:

Messaggio originale di =OTS= Mark Dacascos:

It's sad that you provide no information at all regarding your system specifications.

Your OS is not "iMac". Tell us your system specifications and you might get help.

You're avatar suits you're comment.

My avatar is screaming "HONEY!" while wielding two giant honey-dippers like some sort of crazed food samurai.

Again, what are your system specifications?

[snkr]

Messaggio originale di =OTS= Mark Dacascos:

Messaggio originale di °Д°:

You're avatar suits you're comment.

My avatar is screaming "HONEY!" while wielding two giant honey-dippers like some sort of crazed food samurai.

Again, what are your system specifications?

What do you mean by system specifications?

[Chas.]

Messaggio originale di °Д°:

What do you mean by system specifications?

Have a good one, OP.

[Hydraxl]

Messaggio originale di °Д°:

What do you mean by system specifications?

Do you have a Mac os x Lion, Snow leopard, Mountian Lion? What version of Mac do you have? How good is your processor? How much memory does the Mac have? Etc.

Check by clicking the Apple sign in the top-right corner of the screen, then clicking "About this Mac". Then, if you need more info, click the "More info..." button.

[Hydraxl]

Your computer might not handle the software. Also, is your computer used, and when was it last fixed. Are other things not working? If so, what?

[snkr]

Messaggio originale di Draxl:

Messaggio originale di °Д°:

What do you mean by system specifications?

Do you have a Mac os x Lion, Snow leopard, Mountian Lion? What version of Mac do you have? How good is your processor? How much memory does the Mac have? Etc.

Check by clicking the Apple sign in the top-right corner of the screen, then clicking "About this Mac". Then, if you need more info, click the "More info..." button.

I have a leopard. My computer caan handle another game at best and can run CSS fine.

[Hydraxl]

How powerful is your processor? How much RAM do you have? How much memory do you have? Etc.
Also, what others downloaded games do you play successfully, and how much spare memory do you have? Etc.

[snkr]

Messaggio originale di Draxl:

How powerful is your processor? How much RAM do you have? How much memory do you have? Etc.
Also, what others downloaded games do you play successfully, and how much spare memory do you have? Etc.

I have a "2.4 Ghz Intel Core 2 Duo" processor. I don't know about RAM. Space is 137.31. Games that worked without lag was TF2,CSS,HL2 Demo. Those are steam games that work fine.

[Dueling Rabbit]

Still don't know what OS you have.

Pro Tip: go to the Apple Menu > About This Mac > Under the apple logo is your OS information, including RAM and Processor info.

[snkr]

Messaggio originale di 1310F:DU3LRλB:

Still don't know what OS you have.

Pro Tip: go to the Apple Menu > About This Mac > Under the apple logo is your OS information, including RAM and Processor info.

I have a iMac 2009 or 8 version 10.5.8