So my startup disk filled up, that's bad enough. Five seconds after that message came up, all my files disappeared from view of finder. Please tell me what's going on!
If your startup disk is truly full (or almost so) that can cause all kinds of unusual behavior. I have never seen that specific behavior though. Usually the OS warns you before that happens.
What version of OS X are you running? With that information perhaps we can devise a plan to boot from another disc and remove some files onto another drive.
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