[deback]

I've had this problem twice in the last week: IOError [Errno12] Not Enough Space.
Each time, I also get this error soon after: "Profile Error Occurred: Your preferences can not be read." All I was doing was editing an .epub file using the Book Editor in Calibre.

When this happens, I can't save (in any way) the .epub I'm editing in the Book Editor. I can't close other programs I have open (I keep getting "not enough space" error messages when trying to do anything), and the only thing I can do is to restart the computer. Also, Chrome (or Windows) came up both times with a message giving me the choice to reset my Chrome preferences (the first time, I said yes, and then had to reinstall Chrome, etc; the second time, I said no, and Chrome worked fine after restarting the computer).

The first time this happened, the book I was working on suddenly had no access to the .css files, and the formatting was not like I had coded it to be (when looking at the Preview window in the Book Editor).

I don't know if this is a Calibre 3.8 problem, a motherboard, hard drive, or a power supply that's failing (I've had no other symptoms that make me think it's a hardware failure), or if it's because I do things too fast when using the Book Editor.

Could this be a hardware problem? The reason I'm leaning that way is because the motherboard, hard drive, and power supply are all about 4 or 5 years old, and it seems like it might be time to upgrade my computer parts.

Thanks for any help or advice!