UberNewb: if you're on windows or debian try the latest nightly, the bug might be fixed after 10.05 (if I guess correctly that Jens is using HEAD).
And please next time post your system's software versions (OS/CB/compiler)
I downloaded the nightly build version 6906 and I can still reproduce the same problem. I remember at one point in Code Blocks history that a split window would open in the same font size as selected in the menu, but I don't remember when it started using a different font.
I'm using Windows Vista 32 bit, CodeBlocks svn 6906, and MinGW 3.4.5.
No matter what zoom I use or what font size I select in the menu, the split view always opens up using font size 12.
The problem is the zoom-factor for the editor.
The last changed zoomfactor is stored globally and used for all new editor (except for split-view).
I made a change yesterday, that saves the zoom-factor on a per editor base in the projects layout-file.
It also saves the split-state (not the splitter position yet, but this should be easy) and the zoom-factor of both controls in split-view.
Wouldnt' it be easier to just open new split editors in the font size selected in the menu?
Is there any way to edit a configuration file so I can fix this locally?