Unable to install - .htaccess problem

I am struggling to get Oxid installed.

I have added the following to the .htaccess file:

'AllowOverride All"

This just breaks the install - unable to even open the install page.

I have tried changing All to 'FileInfo'

Same result.

Totally stuck.

Am I missing something here?

All other criteria is OK.

I guess if i can't install - I can't assess the software.

Pity (for something that reviews say is very easy to install).

Cheers,

Mike