Media Temple Grid Server & Revo 2.xxx & get a blank manager......
After 12 long hours of battling this and reading every post on these forums here is what I did to solve this issue.
1. You will need to modify the php.ini with the following:
suhosin.get.max_value_length = 4096
2. Check your config->config.inc.php very closely for the file paths. MT says the system file paths are: /home/00000/domains/domainname.com/html/...
This is not true after you run the install. After the install the file paths are changed to something like: /nfs/c05/g01/mns/00000/domains/domainname.com/html/...
For me these were all changed/updated after the install ****EXCEPT*** for the manager path. It remained /home/00000/domains/domainname.com/html/...
This and all paths need to be the /nfs/c05/g01/mns/00000/domains/domainname.com/html/... version.
Change ALL file paths to this version in all of the config files mentioned in the various locations and you are good to go.
Hope this helps.