[imp] Filtering UI glitch

[AJ]

I found a small little glitch in the new filter UI.
Does anyone else have this problem?

Using the latest CVS HEAD

When i click new rule,
Under the section:
For an incoming message that matches:

There are two radio buttons, when i click the second one, there is no 
refresh immediately, but when I click anywhere on the screen, it refreshes.
The problem is, that after I click the radio button, if I immediately click 
the drop down box underneath (Select a field), it attempts to refresh
the screen, but all I get is a white screen, and nothing ever happens.

Anyone else can reproduce this?

Thanks.
AJ