[Cgi-session-user] puzzled over two flavors of DB drivers

[<ms...@so...>]

I have a question on CGI::Session::MySQL vs. CGI::Session::Driver::mysql 
(which derives from CGI::Session::Driver::DBI).
I attempted to use a CGI::Session (version 3.95) with this code... 

use CGI::Session;
CGI::Session->new(
	"driver:MySQL", $cgi,
	{TableName  => $TBL,
	 DataSource => $DSN,
	 User       => $USER,
	 Password   => $PWD }
); 

but found that the code balked when it did not find a default-named table 
"sessions". That is, it was ignoring my TableName spec above. And this was 
because it was using the older CGI::Session::MySQL rather than the DBI 
approach. I thought this worked for me many months ago when I first looked 
at it, but perhaps I am imagining it :-) So what is the proper incantation 
for the above code to work?