Commented Issue: Dashboard showing error [8]

i have added lead entity to BingMapConfig.xml and have carefully filled the attributes.. yet i am getting this alert (attached) when the dashboard loads initially and when i choose lead(Display Name: Prospect) on the dashboard dropdown and click Load. I have tried the same with opportunity entity also and the same alert box appears and there is no pin for either of the entity records on the dashboard. Please guide.. the account and contact entities work fine though.
Comments: Could you please share the screenshot of error in case of Opportunity entity. If it is same, then it is definitely an issue with attribute names mis-matching in the xml. Thanks, Atul