Thank you for your question.
Could you give us more details on the reinstall process? Did you switch from XP to Vista by using the Vista upgrade option, or did you do a clean installation of Vista?
Also, was your project created under VS2008, or did you convert it from VS2005? If this is the case, it is possible that the project got broken.
At any rate, we are not sure that the ribbon is at fault in this case. Here a couple of things I will suggest trying:
- Try to build your form with the ribbon from scratch. If all works, then it may be best to redo the form;
- If #1 does not work, please download the latest version of the Ribbon (Q3 2007 SP1, trial) and try with it. Although we have tested the Ribbon under VS2008, we will test your case once again with many tabs and elements.
We will be happy to get more information on the problem so that we can tackle it, if it is connected to our product.
the Telerik team