OPTIONS in GAME

[Steppin]

i have not seen anyone question about this...
in game the OPTIONS window (alt o ) is transparent background.. i have TRIED to right click it like i do on other windows to reset the background, and for some reason i can not .. it will not give me a windows settings ...
How can i get this options window back to an OPAQUE background so i can see it without having to put my nose against a black background ?

hehe thanks
steppin