Core is PdaXii13 running on a SL-C1000
OpenBox works perfectly
XFCE4 (4-4.4 Beta2) works with only the following issue's. Xffm and Xfrun4 do not run, from the terminal I get the following error on executing the programs. "xffm: error while loading shared libraries: libxfcegui4.so.3: cannot open shared object file: No such file or directory"
Other than that I got everything working in Xfce4 +Rox (Including the Silkscreen, Special Buttons and the CE-RF2 controls).
Useing this version of Xfce4 solved all the issues I had