I'm having a really odd problem. Kapil Chugh, I hope you're reading.
I installed Disable Parent Menu Link and it works fine, except that I'm using "text-transform: uppercase" on the menu. When DPML is active, as soon as you roll over a link that has child links, once your cursor moves off it the text-transform goes away and leaves the link text in lowercase. I can't figure out WHY this would happen.
Unfortunately, this site has a bunch of stuff affecting the menu. I'm using a theme called Atahualpa, which has a built-in choice to make a menu out of categories. However, the client wanted some pages in the menu as well, so I'm using Custom Menus as well as a plugin called "Add Descendants As Submenu Items" which does just what it says on the can. So adding your plugin is just one more complication - I don't know if you can get to the bottom of this with all that other stuff, but it would sure be nice. Thanks in advance, and let me know if there's any other info you need.