All db2 enablement tools in Domino administrator are disabled

Hi

Domino server was enabled for DB2.

Domino and DB2 were lost during disk failure but had no important data and no backup.

Then domino server and db2 were reinstalled from the scratch. Domino uses the same server document and ID. All db2 options were removed from notes.ini, db2 settings cleared in server document.

Domino administrator still shows all db2 enablement buttons disabled.

How could I reenable db2 for this server?

Thanks

Ramunas