answer:1. Calm down. 2. Reboot. 3. Re-evaluate. Whenever I get a problem like that such that “everything” is going wrong, then it’s time to reboot first. Another thing to look at is whether the files are your own (created by you on the same system), or are they from others, perhaps using newer versions of the software, or containing macros (for example) with library references that you don’t have.