Thats too bad kcartlidge. I have heard a few 2k users with similar reports though (but not every time).
There are a few hidden gems in this build, that once you figure them out are pretty powerful. After someone tipped me off just how to use the new User Mode css features, I got intrigued to try it again.
Go to preferences (alt-p), and then Page Style and put a check next too "my style sheet" in both columns and click ok to exit.
Now surf any page. On the default address bar, there is one drop down menu on the left with a little arrow on it. Click that and up pops the list that starts out, "Emulate Text Browser" and goes through about 10 options. Those are user applied local style sheets that can apply to EVERY page!
Be sure to check out the debug css to "show structural outline", and "Debug with Outline". The possiblities for writing better code faster are incredible.
Just using it for 10 mins here, I found 3 near html errors (unclosed td's) that were passing the validators.
I'm just now starting to realize how incredible this option is. You'll just have to play around with it some to figure it out.
This is nothing short of a revolutionary advancement for browser users and developers.