Since I first Dl'd the arduino IDE, trying to run the application would result in a pretty generic crash. Running run.bat starts it up just fine, but it forces a change in color scheme (im using Windows Vista) due to some incompatibility, which is very annoying, and isn't a real good solution
However, deleting or renaming the java folder allows it to start without issue. However, I wonder if this is not something I should be doing, even though I have been using it so far. I wonder if this might break anything that I'm not seeing...
EDIT: It might be relevant to note that I have two versions of the Java Runtime Environment installed on my computer--JRE versions 1.4 and 1.6