getting a lot of new ERRORS lately

[ceagle]

Ever since LJ came back from that hack, I've been getting errors when hitting the back button now and then, there is an error that the "page is blank" or "the page cannot be found"
Have any of you experienced this too, and are the LJ folks aware of it?
The site does run faster it seems, but these errors are weird.. maybe a third of the time I'm getting them :/