/administrator/components/com_virtuemart/classes/shipping/fedexv2.php (lines vary depending on version)
in the function list_rates(), anywhere you see something like this:
$shipping_rate_id = urlencode(__CLASS__."|FEDEX2|".$ship_all_ground_name."|".str_replace('$','',$ship_all_ground_cost));
take the two out. It is unnecessary and should not affect any other code.
Reggie