Query Cache v1.0

[data_digger]

I am using the latest version of query cache on 1.3.7.1. I occasionally get this error while browsing through the store side of our site:

1062 Duplicate entry 'zc_7eb4ed1f36d90140477d9474b61e0e26' for key 1
in:
[db_cache table]

Is this to do with query cache?? I hate for customers to get this error message on an otherwise blank page!!

My extra configures settings are:

define('QC_USE_PRODUCT_QUERY_DETECTION',FALSE);
define('QC_ZEN_GET_CATEGORIES_PRODUCTS_LIST_PREFETCH', FALSE);

No, it's not because of QueryCache. Query Cache does not use db_cache_table.