Here are some bugs I'm come across in CRM 2013.
|Account Name is filled in a Quick Create form when it should be blank||Follow these steps:
1. Navigate to a contact that has a value in Company name
2. Click the lookup control for Company Name
3. Click + New
In the Quick Create form, Account name is populated with the value that is in Company Name. This is not expected. I would expect Account Name to be blank.