Mose positioning issue in console on chrome

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Browse to the console using chrome.
2. Position mouse over first service, notice that the list doesn't change to 
indicate mouseover.
3. Position mouse slightly below service (10 to 25 pixels), notice that 
mouseover is now indicated.
4. Reposition over plus symbol and click. Notice no result.

What is the expected output? What do you see instead?
The expected outcome is that the mouse position tracks correctly. The actual 
outcome is that the cursor appears to be below where it is registering.

What version of the product are you using? On what operating system?
Fluorine 1.0.0.15, running inside Google Chrome 5.0.375.55 on Windows XP sp 3.

Original issue reported on code.google.com by dmon...@gmail.com on 6 Dec 2010 at 6:25