The first I think may have been running with one other conversion. Is there a way to tell calibre how many to process at once?
The second error I think i tried increasing to 500 but that may have been too much. Will try 400 and see if its any better. I do know that I tried changing the HP settings from off to on and back again. hopefully the size thing will work.
ETA: For second error, dang'it if it didn't work this time. 3 worked after changing to 400, 1 at 500 and 1 at 600. Thanks for that. I tried several times the other day, just didn't wanna cooperate i guess (or was that before i updated to the newest version? I'll never remember

)
ETA2: The epub to epub, changing the size back to 260 is still erroring out. How much of a problem will this really be on my reader or phone?