This is a problem that occurs everytime there is a major update. This is the fix or mod I use from an old post, I have it saved as a text file in my odds and ends Planeshift folder, you should do the same
"As it has been reported already (use search function) this think about white labels was happening to a certain amount of players.
Quoting res, there\'s the solution:
Blind shot: does uncommenting the line \"Video.OpenGL.UseExtension.GL_SGIS_generate_mipmap = false\" (remove the leading semicolon) from data/config/r3dopengl.cfg change anything?
So what you\'ve to do is, basically open the file r3dopengl.cfg with the notepad and remove the \";\" at the line stated. Good luck."
*edit*
sorry if thats confusing it's what ive saved from an old post and have done it a lot so I understand the text lol. Basically go into you Planeshift folder, find file named "r3dopengl.cfg " open it with wordpad or notepad of you can. You will see this line of code "Video.OpenGL.UseExtension.GL_SGIS_generate_mipmap = false" with a ";" leading off the line. Delete the ";" and save. Load PS and those pesky white boxes should be gone. Hope this helps.
[ Please avoid making one post right after the other in the same thread. Just "Modify" your first post to add more information. --Karyuu ]