Blogger Dazednconfuzed requested a new feature that has now been integrated into all versions of Last Comments. The new feature is the ability to show a 1-pixel dotted line in between each comment instead of showing the Separator bar above each comment. You can activate this feature by putting a 0 (zero) immediately after the S in your Display List.
For those of you who are using the default display and have left the Display List blank, just enter S0 in the Display List text box on the gadget configuration page (Design|Page Elements → Last Comments:Edit), and the list of recent comments will continue to use the defaults but the Separator bars will no longer appear above each comment and instead a 1-pixel dotted line will appear in between each of the comments.
The 1-pixel dotted line will use the same color you have set for the Separator bars (the default color is blue), so if you want to change the color of the dotted line, please select a different color for the Separator bars from the configuration page and the color of the dotted line will change, too.
In addition to this new feature, the Last Comments User Manual has also been updated to address all the current gadget features. If you need additional help with anything, feel free to ask about it in the comments.