I don't know. It looks like it's trying to run some code from the prior version. Did you hard code something into your startup.m that specifically runs something from the old version? Maybe try doing this:
restoredefaultpath
savepath
Then restart and see if the error messages pop up again. If they do, set a breakpoint on the first line of your startup.m file and step through to see where they arise. If you still can't figure it out, call the Mathworks, which offers free installation help for everyone , even for student/education/home editions.
