I'm having a number of problems with Upfront. 1. Huge lag -

I'm having a number of problems with Upfront.

1. Huge lag - anywhere from 10-60+ seconds. Most noticeable on the "undo" button which consistently 60+ seconds. Even on drag and drop, there is a significant delay making navigation confusing. BTW, my last save has been hung for 5+ minutes as I write this.

2. Control panel covers part of the screen, so I don't get a true view of what user sees. Is there a preview option I'm missing?

3. Images - including the ones that came automatically with Spirit don't show up when you go to the url astorspethorse.info I'm working in.

Started out in Chrome, but even after removing adblock and flashblock, drag and drop failed. Now working in IE. If I'm working in the real final product for Upfront, this is scary. I'm assuming something is awry. Any ideas - has this happened before? Thanks.