AYUDA!Erros instalando SAP Netweaver, trial version

[evamau]

Hola,

Estoy intentando instalar la version trial de sap netweaver 7.03, 64 bits, pero siempre se me queda atascado en el paso 8.
An error occurred while processing option SAP NetWeaver 7.0 including Enhancement Package 3 > SAP Application Server ABAP > MaxDB > Central System > Central System( Last error reported by the step: Error during execution of command identifier 'PARAM_INIT' : : [4944] 00:08:21 ***Warning: Loadavg: Could not add processor time performance counter to query. com.sap.dbtech.rte.comm.RTEException: Cannot connect to host localhost:7210 [Connection refused: connect], -813.). You can now:
Choose Retry to repeat the current step.
Choose Log Files to get more information about the error.
Stop the option and continue with it later.
Log files are written to C:/Program Files/sapinst_instdir/NW703/AS-ABAP/ADA/CENTRAL

Alguna idea que puedo hacer? muchas gracias