mainehiker, I agree that it has been very frustrating lately. Today was the worst. Are you saying that you still can't read some boards? When the problem happened to me today (twice) I logged out and then went to the boards that I wanted to read without being logged in. I could then read all of the posts. When I logged back in the first time, it worked for a bit and then it happened again.
I did the same thing again and this time I cleared my cache which I do pretty regularly anyway and I haven't had the problem since.
I still think it's the new server. If it was me I would demand a replacement...but that's just me.