What steps will reproduce the problem?
1. /buffalo3 > Profiles
2. Select a new profile in the "Existing" dropdown.
3. An error message should pop up.

What is the expected output? What do you see instead?
The new selection is shown on the dropdown after clicking, but none of the new profile's settings are reflected in Buffalo3 until a /console reIoadui. This error will occur every time a different profile is selected using that dropdown. The copy and delete dropdowns do not cause errors, but any profiles deleted using the latter will not show up in the "Existing" dropdown, even after a /console reloadui. I actually deleted all available profiles at one point (default, realm, class, and character) - both the copy and delete dropdowns greyed out as expected, but the existing dropdown still had them all. I could then get them back in the current/delete lists by clicking on them in the buggy dropdown.

What version of the product are you using?
v6.0-beta

Do you have an error log of what happened?

[2009/07/17 02:26:58-1528-x1]: buffalo3-v0.6-beta\Buffalo3.lua:72 attempt to concatenate local 'id' (a table value)
buffalo3-v0.6-beta\Buffalo3.lua:42 in function `?'
CallbackHandler-1.0-3:146: in function <...oot\Libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:146
<string>:"safecall Dispatcher[3]":4: in function <[string "safecall Dispatcher[3]"]:4>
<in C code>: ?
<string>:"safecall Dispatcher[3]":13: in function `?'
CallbackHandler-1.0-3:91: in function `Fire'
AceDB-3.0-15 (AtlasLoot):420: in function `SetProfile'
AceDBOptions-3.0-10:217: in function <...ctionLite\Libs\AceDBOptions-3.0\AceDBOptions-3.0.lua:216
(tail call): ?:
<in C code>: ?
<string>:"safecall Dispatcher[3]":9: in function <[string "safecall Dispatcher[3]"]:5>
(tail call): ?:
...:
<string>:"safecall Dispatcher[3]":9: in function <[string "safecall Dispatcher[3]"]:5>
(tail call): ?:
AceGUI-3.0-25 (buffalo3):305: in function `Fire'
...o3\libs\AceGUI-3.0\widgets\AceGUIWidget-DropDown.lua:426 in function <...o3\libs\AceGUI-3.0\widgets\AceGUIWidget-DropDown.lua:417
(tail call): ?:
<in C code>: ?
<string>:"safecall Dispatcher[3]":9: in function <[string "safecall Dispatcher[3]"]:5>
(tail call): ?:
AceGUI-3.0-25 (buffalo3):305: in function `Fire'
...s\AceGUI-3.0\widgets\AceGUIWidget-DropDown-Items.lua:333 in function <...s\AceGUI-3.0\widgets\AceGUIWidget-DropDown-Items.lua:328

Please provide any additional information below.

Like my other ticket, made sure that the error was reproducible without any other mods running.