Help! Engine Error

Hey guys, I’m posting this again because i still don’t have a solution. Every time i start up Garry’s Mod on my mac (yes i know, get a PC I’m trying) I will get an error that simply reads “Engine Error Could Not Load Library Client” no error code or anything. Anyways i bought Garry’s Mod and i really want to play it, but I can’t so I’m starting to think I wasted money. I checked and I have the proper requirements to play GMod, if you don’t believe me I have Mac version 10.5.8, 2 GB of ram, a 2.66 GHz Intel 2 Duo processor, and I have a NVIDIA GeForce 9400. So I don’t know what the problem is, please help:(

Macs are fine to play Garry’s Mod with. I’d recommend upgrading your OS for a starter

I’ve seen this problem around; it means your version or hardware is outdated.

Alright, thanks, I’ll wait a little more then, I want to buy a PC soon.