When loaded in dark, the armchairs look like this ( see attachment) :

Anyone else got the same problem?

 

looks like a dx10 issue to me that

Yes it seems to be due to dx10. I am also using dx10 and have the same issue! You can replace the ugly blue fsx texture with a dark one.

This package contains such a texture:

 

http://library.avsim.net/search.php?SearchTerm=shader+dx10&CatID=root&Go=Search

(don't use any installer but navigate to /Bonus!/Dark Background Texture/ and follow the instructions in the readme file!)

 

It will at least look better then!