WowAce

What steps will reproduce the problem?
1. Adjust width Weight by sliding scale. When it hits 0 this happens.

ShadowedUnitFrames\modules\layout.lua:478: Division by zero
ShadowedUnitFrames\modules\layout.lua:478: in function `SetupText'
ShadowedUnitFrames\modules\layout.lua:143: in function `Load'
ShadowedUnitFrames\modules\layout.lua:106: in function `Reload'
ShadowedUF_Options\config.lua:219: in function <ShadowedUF_Options\config.lua:213>
ShadowedUF_Options\config.lua:249: in function <ShadowedUF_Options\config.lua:239>
ShadowedUF_Options\config.lua:265: in function <ShadowedUF_Options\config.lua:253>
ShadowedUF_Options\config.lua:1725: in function <ShadowedUF_Options\config.lua:1723>
(tail call): ?
[C]: ?
[string "safecall Dispatcher[2]"]:9: in function <[string "safecall Dispatcher[2]"]:5>
(tail call): ?
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0-60.lua:799: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:614>
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0-60.lua:851: in function <...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:839>
(tail call): ?
[C]: ?
[string "safecall Dispatcher[3]"]:9: in function <[string "safecall Dispatcher[3]"]:5>
(tail call): ?
Masque\Libs\AceGUI-3.0\AceGUI-3.0-34.lua:314: in function `Fire'
...sque\Libs\AceGUI-3.0-34\widgets\AceGUIWidget-Slider.lua:70: in function <...sque\Libs\AceGUI-3.0\widgets\AceGUIWidget-Slider.lua:60>

Locals:
nil

Division by zero errors are typically enabled in beta clients and just go away on release clients. A weight of 0 doesn't make much sense so it could probably protect against that though.