Black Sky during day

[Gaijin]

Hi folks,

I presume I've messed up somewhere, by having 'pitch black' sky textures during the day. I don't know my way around sh3 folders too well. Now, I remeber installing lifeboats and I *think* OLC, but can't quite remember. (It was a few weeks ago).

Where are the sky textures in sh3 folders?

Should I reinstall OLC?

Any other *bernardism* I could have done, myself?

Many thanks.