Sounds like a candidate for deleting the directory in which you installed the arduino IDE, an installing it again.
If that doesn't work, I'd suspect a Java problem. You'll need to update/reinstall Java.
Try delete/reinstall the IDE first though.
Sounds like a candidate for deleting the directory in which you installed the arduino IDE, an installing it again.
If that doesn't work, I'd suspect a Java problem. You'll need to update/reinstall Java.
Try delete/reinstall the IDE first though.