In the last few weeks--after I don't know which update--alt-f4 often does not close a file. Additionally, file lists such as documents are often announced to be unavailable. I thought it might be because one instance was already open and windows was telling me to go there instead of opening a second instance, but I'm not sure that is true.
I believe these to be Windows problems, not JAWS, but it's possible that it's JAWS somehow.
Can anyone shed some light on this. My students are also getting the unavailable announcement.