What steps will reproduce the problem?
1. Install Addon
2. Log into Warcraft
3. a) Interface->Options->EasyDKP->Move Quality Slider
3. b) Setting Quality Level via Command

What is the expected output? What do you see instead?

What version of the product are you using?
v0.1.0-beta2

Do you have an error log of what happened?
For Error 3a:
[2008/11/12 03:01:31-1347-x1]: EasyDKP-EasyDKP vv0.1.0 (r30)\Options.lua:91 attempt to concatenate local 'newvalue' (a table value)
(tail call): ?:
<in C code>: ?
<string>:"safecall Dispatcher[3]":9: in function <[string "safecall Dispatcher[3]"]:5>
(tail call): ?:
AceConfigDialog-3.0-25:776: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:600
AceConfigDialog-3.0-25:829: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:821
(tail call): ?:
<in C code>: ?
<string>:"safecall Dispatcher[3]":9: in function <[string "safecall Dispatcher[3]"]:5>
(tail call): ?:
AceGUI-3.0-16 (CooldownCount):264: in function `Fire'
...olic\libs\AceGUI-3.0\widgets\AceGUIWidget-Slider.lua:58 in function <...olic\libs\AceGUI-3.0\widgets\AceGUIWidget-Slider.lua:56

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For Error 3b:
[2008/11/12 03:05:29-1348-x1]: EasyDKP-EasyDKP vv0.1.0 (r30)\Options.lua:91 attempt to concatenate local 'newvalue' (a table value)
(tail call): ?:
AceConfigCmd-3.0-6:119: in function <...\AceConfig-3.0\AceConfigCmd-3.0\AceConfigCmd-3.0.lua:109
AceConfigCmd-3.0-6:450: in function <...\AceConfig-3.0\AceConfigCmd-3.0\AceConfigCmd-3.0.lua:299
(tail call): ?:
AceConfigCmd-3.0-6:696: in function `HandleCommand'
AceConfigCmd-3.0-6:715: in function `?'
Interface\FrameXML\ChatFrame.lua:3191 in function <Interface\FrameXML\ChatFrame.lua:3144
<in C code>: in function `ChatEdit_ParseText'
Interface\FrameXML\ChatFrame.lua:2911 in function `ChatEdit_SendText':
Interface\FrameXML\ChatFrame.lua:2932 in function `ChatEdit_OnEnterPressed':
<string>:"*:OnEnterPressed":1: in function <[string "*:OnEnterPressed"]:1>

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Please provide any additional information below.
I´m using a german client (deDE locale), if it matters.