Have just updated from 5.1 to 5.2 and the Primary Info text in top right hand corner is gone. Shift Z does not bring up aircraft flight performance. Is this a by product of the update or how do I turn this feature back on?

RoyH

If you updated with just the Client, it's likely you are missing some files only included in the Content. Try updating the Content too.

For this new 5.2 version I went ahead and did a complete new installation, it is a not the most convenient method to upgrade but can confirm no issues with Shift Z or text displaying correctly. Every previous upgrade was done using the client only method without any problem. It is a lot of extra effort unfortunately.