Hangs when accessing File menu

I have the DSO201. It seems to be working fine except that it hangs when I get to the file menu from either down or up. :cry:
I am running the latest Benf firmware 3.64 (installed yesterday). The microSD card is a Kingston 2GB. It is formatted as FAT and I have tried it empty or loaded with the TF_Card_pre_defined_File.zip extracted onto it.

I am trying to record signals generated when a remote control button is pressed on a remote for a Kenwood car radio. I am struggling to do this and would value any guidance nayone cangice.