Postnote Mainmenu problem

Hi! I couldn't imagine to have a problem with the Postnote Mainmenu but now I have one. I was finishing my work on a website based on the Postnote Quickstart J!1.5.23 and I decided to remove some demo items from the Mainmenu. After I did this, my own dropdown items of the Mainmenu stopped working. So now I wonder what I should do to improve the situation.

To add, before I removed the demo items from the Mainmenu I updated the Joomla! version from 1.5.23 to 1.5.24. However, I didn't check then whether the Mainmenu worked properly.

I would appreciate if you would give your ideas on the issue, dear colleagues. Thank you in advance.

Are there professionals to help me? ...Actually today is my last day of membership...

Maybe when you delete some menu items which were mark as group ? Please look at menu item settings and make sure that elements in one column have parent with 'group' option marked.

Does this mean I shouldn't remove the menu items marked as "group" at all? ...And one more question... Could my problem appear as the sequence of updating the Postnote Quickstart J! 1.5.23 to the level of J! 1.5.24 ?

...Finally I understood what was the cause of my problem. Updating Postnote Quickstart J! 1.5.23 to the level of J! 1.5.24 caused the dropdown items of the Mainmenu didn't work. This was the programming mistake of GavickPro team. I mean those people who developed the GK Postnote template. I lost very very much time because of this mistake. It's about several working days.

...Just to add, when I rolled back from J! 1.5.24 to J! 1.5.23 my Postnote Quickstart template started working fine again. I mean all dropdown items of the Mainmenu started working after I rolled back.

Hi again! I've used this weekend to make sure one more time whether I was right saying that the GavickPro team made the said programming mistake. So now I have to tell that I was wrong saying this. There were many factors which could cause the dropdown items of the Mainmenu didn't work. And I checked all of those as I think. The result is the following. I found a component which I installed on my website and this component blocked normal performance of the dropdown Mainmenu items. The component is WEBO Site SpeedUp (free version). It includes some plugins.

As for my rolling-back to J! 1.5.23, this step was the first one: I just restored my website by means of its old version from October 31, 2011. This website version was without WEBO Site SpeedUp but my first idea about the cause of my problem was not the said component. I thought that updating from J! 1.5.23 to J! 1.5.24 caused the problem. Then I thought that it was the GavickPro team which didn't prepare the Postnote Quickstart template for further Joomla! updating. Hence, as I thought, the GavickPro team made a programming mistake. This was perhaps the easiest way of thinking but now it's clear it was not right.

WEBO Site SpeedUp component causes some risks as I read earlier. And so I just faced the risks. After removing the said component, my website, including the dropdown Mainmenu, works fine (so far). And this is on J! 1.5.24. So now I see that there is no ground to blame the GavickPro team. To be frank, I like very much what the team does. And I wish all the GavickPro team members every success in the future. This is what I wanted to say closing the issue.