We are receiving 9667 errors and the recommended fix seems simple enough - create a temporary mailbox store, move all users to temp, delete database on realtime store, recreate then move users back. The problem is that when I try to create a temp store I get the error "this storage group already contains the maximum number of stores allowed" which appears to be caused by the fact that the version of Exchange that comes with SBS is Standard and that precludes creating an additional store. Is there a workaround for this issue?