I can only say for sure that SDict Viewer has a brand new version that fixes a bug where I would act like it was opening and then not do anything. So grab the new version if you don't alread have it (v0.6 - I think).

Otherwise, the only thing I can suggest is to try to run the apps from command line and see what it spits out - that should give you some clue as to what's going on. Now the challenge is figuring out what the command is for each application - for SDict Viewer the command is 'sdictviewer' so that one is easy enough.