Trouble viewing characters

[Solvostond]

Hello, I'm having trouble viewing some hal characters.  I've had trouble elsewhere viewing pictures so I don't think this is a bug with hal's programming.  Strangely enough, both Hal and the Zabaware frog are unviewable, but I can see Merlin.  Anyone have any suggestions as to what this is and how I can fix it?  Thx in advance.