Issue: Too dark map in HL2RP

[guard]

I have experienced for first time ever, and in this server with the map rp_c18_v1 that the lightning is too dark than normal - Not like the screenshot of the posted map for download, but REALLY dark. This is a preview of what I mean:

http://cl.ly/0k0p3M2r3D3105241S2T

I meet all requirements and as said before never experienced this issue before. I run with these specs:

Apple MacBook Pro 15"
Intel Core i5 (2.4 GHz)
4GB DDR3 RAM
NVIDIA GeForce GT 330M

Note: Mac OS X does only support OpenGL as graphic engine, not DirectX. Therefore I don't have support for HDR in Source games.

What I've tried:
- Restarted Steam
- Restarted Computer
- Checked for updates (I have the newest updates for drivers)
- Checked other maps - Works fine
- Changed graphic settings.

Now what could be the issue, and if you have experienced the same issue please tell and if you have a fix, post it as well.

Thanks in advance.

Edit:
Note that this is AFTER the newest update of Garry's Mod on April 16, 2011

UPDATE: Maps works fine when I play it in single-player mode. But not in Catalyst Gaming's server.

[Hunger Johnson]

I have experienced for first time ever, and in this server with the map rp_c18_v1 that the lightning is too dark than normal - Not like the screenshot of the posted map for download, but REALLY dark. This is a preview of what I mean:

http://cl.ly/0k0p3M2r3D3105241S2T

I meet all requirements and as said before never experienced this issue before. I run with these specs:

Apple MacBook Pro 15"
Intel Core i5 (2.4 GHz)
4GB DDR3 RAM
NVIDIA GeForce GT 330M

Note: Mac OS X does only support OpenGL as graphic engine, not DirectX. Therefore I don't have support for HDR in Source games.

What I've tried:
- Restarted Steam
- Restarted Computer
- Checked for updates (I have the newest updates for drivers)
- Checked other maps - Works fine
- Changed graphic settings.

Now what could be the issue, and if you have experienced the same issue please tell and if you have a fix, post it as well.

Thanks in advance.

Edit:
Note that this is AFTER the newest update of Garry's Mod on April 16, 2011

IT's just you, change your graphics settings.

[Statua]

- Changed graphic settings.

IT's just you, change your graphics settings.

Learn to read derp.

Thats an odd glitch and I don't see any updates which would cause it. Might be the render target. Try to disable RT cameras via console.

[guard]

So, do you guys have any thoughts what might be wrong?

[Crap-Head]

So, do you guys have any thoughts what might be wrong?

Have you tried agein after the new GMod update was released yestarday?

[guard]

Yes, dosen't work either. See my UPDATE in first post

[TOMASAS]

Try renaming your Garry's mod folder and installing again, should fix it.

[vizioN]

Wrong board. Switching to the appropriate forum.

[Rory]

Kaz is working on a great new map. It will be lighter and darker at the same time.

[.:KFrohman:.]

It's probably gamemode related. The gamemode uses several effects, including colormod and overlays. I don't think there is a fix. Have you tried another HL2RP server?