Gmod.....

I downloaded GMOD version 9, but when i go to launch it from steam, its says it is currently unavailible.....help?

EDIT: It also says MountFilessystem(241) Failed: No steam content servers are availible

Try getting help over at gmod`s official forum:
http://forums.facepunchstudios.com/

My Buddy's havin' similar problems.

Just make sure you've got HL2 and CS:S. After that, it should run fine. If it doesn't, that means that the guys down at FacePunch and Garry have switch completely to Gmod10, or their Gmod BETA2007.