error during installation of 7.7 beta 2

During installation i get the following error :

Creating SuiteCRM configuration file (config.php)

Creating SuiteCRM application tables, audit tables and relationship metadata
Creating the database scrmbeta on localhost...done

( ! ) Parse error: syntax error, unexpected T_USE, expecting T_FUNCTION in E:\wamp\www\scrmbeta\modules\Calls\Call.php on line 52
Call Stack
#	Time	Memory	Function	Location
1	0.0032	621152	{main}( )	..\install.php:0
2	0.2913	19798760	require( 'E:\wamp\www\scrmbeta\install\performSetup.php' )	..\install.php:770

Have you tried the latest Release Candidate? Can you report back if this is still an issue with the Release Candidate installation?