CMS controls in admincp are gone after 4.2.0 upgrade!

[adabros]

Hi people.
I've a problem.
After upgrade (4.0.3 PL7 -> 4.2.0 ) mine CMS controls (a row on the left in the admincp) are gone.
Why?
Product CMS are enabled.
In the past versions, nothin' problem.

[Lynne]

Check AdminCP > Usergroups > Administrator Permissions and make sure you have permissions to access the CMS.