ok after updating to 2.7.1 I was able to access every admin feature with the exception of the plugins page. I got the following:
Fatal error: Allowed memory size of 41943040 bytes exhausted (tried to allocate 7680 bytes) in Path_to_WebLog/wp-includes/kses.php(401) : runtime-created function on line 1
So, after reading here I renamed my plugins folders and created a new one. I then added and activated my plugins one by one and was fine until I got the error message again.
So I uninstalled that last plugin and all was fine. But, now I have 3 plugins I was using with 2.7.0 but can't with 2.7.1.
I've contacted my host and my memory usage was increased to 64mb. I retried but still have the same problem.
Now, here's where it really gets weird. I can install the plugin and my site works ok, but I can't access the plugins page in my admin.