Well I don't know if this can help in a round about way but I've never had that problem
and from your list these are the addons
I don't have installed.
(if it is an addon related issue that is, there's still a chance it's a blizzard thing unless you've run without any addons for a while)
Code:
+AddonChatMessageHider
Aloft
Altoholic
AuctionLite
Baggins
Bazooka_Options
ButtonFacade
CancelMyBuffs
DBM-Core
DBM-Core
DBM-Sunwell
DBM-Sunwell
DataStore_Crafts
FB_TrackingFrame
FishingBuddy
Forte_Talent
GhostRecon
Moniker
MoveAnything
OPie
Overachiever
PCValkMon
PassLoot
PhoenixStyleMod_Coliseum
PhoenixStyleMod_Icecrown
PhoenixStyleMod_Ulduar
PhoenixStyle
PowerAurasButtons_Config
Prat-3.0
Prat-3.0_Libraries
RaidAchievement_AchieveReminder
RaidAchievement
RaidAchievement_CataHeroics
RaidAchievement_CataRaids
RaidAchievement_Icecrown
RaidAchievement_Naxxramas
RaidAchievement_Ulduar
RaidAchievement_WotlkHeroics
SBFOptions
SatrinaBuffFrame
ShadowsEclipseMonitor
SickOfClickingDailies
Skinner
TheErrorIsALie
TimeToDie
TinyDPS
Tukui
TweakWoW
VampArrow
WeakestLink
ZOMGBuffs
_NPCScan
bcsGBF
nibSpellAlertConfig