I was finally able to download and install OpenSuse 10.2. I installed wxGTK 2.6.3 with Yast, did a svn checkout of Code::Blocks, compiled it, ran it, opened the Code::Blocks project file, clicked on the build target's wxChoice and... it didn't disappear.
Did I do anything wrong?
you are very lucky, I am so jealous. My suse boxes are 64 bit. But my laptop suse is 32 bit, will do a freesh svn checkout on that one and try out ...
switched one linux box (64 bit) from wx263 to wx284 : problem gone.
To be short and ver strict : die wx26x, welcome wx284 ;-)