Spring RTS Engine

When I execute Spring, it first asks me to choose a mod, a map and a script, then it loads and afterwards it prints out "Couldn't load texture from bitmap\armsmoketrail.tga".
My TASClient can't find any bots.
(I'm using Win Vista)

This is a file within BA (in /bitmaps/).

Why this error would occur i'm not sure, try redownloading BA possibly?