Html element can be found but not clickable by Telerik

Hi there,

Today I met a strange thing using Telerik, here is the step:
Scenario 1:
1. Go to http://wwwqa.shoppingtools.ford.com/FindADealer
2. Input "69210" in the zip code and search, you can see 3 items in the results.
3. Then find the link "View Additional Disclosures" worked. 
4. hover on it, -----worked.(Can see the mouse hover on the element)

Scenario 2:
1. Go to http://wwwqa.shoppingtools.ford.com/FindADealer
2. Input "48152" in the zip code and search, you can see 6 items in the results.
3. Then find the link "View Additional Disclosures" -worked.
4. hover on it, -----Doesn't work
Telerik can find the element of link "View Additional Disclosures", but when hover on, observe the mouse in the middle of the results area, then I tried element.scrolltovisible before hover on, still not work

There is no difference for the page element between 3 results and 6 results,can you help have a look?
Thanks in advance,
Fion