Got this bug with QuestTracker all of a sudden. It's been working perfectly (have had it for ~2 months) otherwise up until now.

Message: Interface\AddOns\QuestGuru_Tracker\QGT_Quests.lua:489: Usage: GetQuestLogTitle(index)
Time: 10/23/09 23:14:44
Count: 42
Stack: [string "Interface\FrameXML\BasicControls.xml:
: ?
: in function `GetQuestLogTitle'
Interface\AddOns\QuestGuru_Tracker\QGT_Quests.lua:489: in function `QuestLog_UpdatePartyInfoTooltip'
Interface\FrameXML\QuestLogFrame.lua:177: in function `QuestLogTitleButton_OnEnter'
[string "*:OnEnter"]:1: in function

Locals: (*temporary) = nil

No error code, but did catch something that I wanted to bring to your attention. I recently changed factions, Alliance to Horde. I was tracking the achievement "Tricks and Treats of Eastern Kingdoms", but when I changed to Horde, it still showed up in the tracker. When I go into the achievment list, I can now track the Horde version of the same achievement, with no way to clear the Alliance version.

Quest Guru LUA error

Message: Usage: AddTrackedAchievement(achievementID)
Time: 08/06/09 16:19:51
Count: 1
Stack: [string "Interface\FrameXML\BasicControls.xml:
: ?
: ?
: in function `AddTrackedAchievement'
...erface\AddOns\QuestGuru_Tracker\QGT_Achievements.lua:711: in function `QGT_SetAchievements'
...erface\AddOns\QuestGuru_Tracker\QGT_Achievements.lua:108: in function

Locals: (*temporary) = 1823

Date: 2009-05-28 11:41:16
ID: 1
Error occured in: Global

Count: 1

Message: ..\AddOns\QuestGuru_Tracker\QGT_Quests.lua line 437:

Usage: QGT_QuestWatchFrameTooltip:SetHyperlink(link)

Debug:

(tail call): ?

: ?

: SetHyperlink()

QuestGuru_Tracker\QGT_Quests.lua:437: QGT_QuestWatchButton_OnEnter()

[string "*:OnEnter"]:1:
[string "*:OnEnter"]:1

AddOns:

Swatter, v5.5.4270 (WombatII)

AckisRecipeList, v1.0 RC8 1865

ACP, v3.1.0.17

ActionButtonColors, v1.4
Atlas, v1.14.1

AtlasBattlegrounds, v1.14.1
AtlasDungeonLocs, v1.14.1

AtlasOutdoorRaids, v1.14.1
AtlasTransportation, v1.14.1
AucAdvanced, v5.5.4270 (WombatII)
AucFilterBasic, v5.5.4270 (WombatII)
AucFilterOutlier, v5.5.4270.2531
AucMatchUndercut, v5.5.4270.2531
AucStatClassic, v5.5.4270 (WombatII)
AucStatHistogram, v5.5.4270 (WombatII)
AucStatiLevel, v5.5.4270 (WombatII)
AucStatPurchased, v5.5.4270 (WombatII)
AucStatSales, v5.5.4270.2842
AucStatSimple, v5.5.4270 (WombatII)
AucStatStdDev, v5.5.4270 (WombatII)
AucStatWOWEcon, v5.5.4270.2530
AucUtilAHWindowControl, v5.5.4270.3311
AucUtilAppraiser, v5.5.4270.2530
AucUtilAskPrice, v5.5.4270.3175
AucUtilAutoMagic, v5.5.4270.3142
AucUtilCompactUI, v5.5.4270.2530
AucUtilEasyBuyout, v5.5.4270.3583
AucUtilFixAH, v5.5.4270 (WombatII)
AucUtilItemSuggest, v5.5.4270.3108
AucUtilPriceLevel, v5.5.4270.2545
AucUtilScanButton, v5.5.4270.2530
AucUtilScanFinish, v5.5.4270.2530
AucUtilScanProgress, v5.5.4270.2530
AucUtilSearchUI, v5.5.4270.3655
AucUtilSimpleAuction, v5.5.4270.0
AucUtilVendMarkup, v5.5.4270.2530
Auctionator, v2.3.6
AutoDing, v2.4.1
autograts, v
AutoProfitX, v2.04
Babylonian, v5.1.DEV.130
Bagnon, v1.7.2
BagnonForever, v1.1.1
BagnonTooltips, v
BeanCounter, v5.5.4270 (WombatII)
CensusPlus, v4.2.2
Configator, v5.1.DEV.130
DebugLib, v5.1.DEV.130
Enchantrix, v5.5.4270 (WombatII)
EnchantrixBarker, v5.5.4270 (WombatII)
EquipCompare, v2.16
FishingBuddy, v0.9.7d
FloAspectBar, v
FloTotemBar, v
FuBar, v
FuBarAmmoFu, v2.0
FuBarCalendarFu, v3.0.0
FuBarClockFu, v3.0
FuBarDurabilityFu, v2.11
FuBarExperienceFu, v1.1 $Revision: 65606 $
FuBarFactionsFu, v2.2.1-79
FuBarGuildFu, v2.4.3-116
FuBarLocationFu, v3.0
FuBarMailFu, v2.0
FuBarMoneyFu, vv1.2.1
FuBarPerformanceFu, v2.0.0
FuBarRestFu, vv1.3.1
FuBarSpeedFu, v3.0
FuBarTopScoreFu, vv1.0.5
FuBarWhisperFu, v2.0
FuBarWintergraspFu, v1.0-release
GatherMate, vv1.18
GFWFeedOMatic, v3.1
InFlight, v3.1.001
InFlightLoad, v3.1.001
Informant, v5.5.4270 (WombatII)
ItemDataCache, v1.303
LibRock10, v
MobInfo3, v0.801
OmniCC, v2.5.3
OpenAll, v1
QuestGuru, v1.0.8
QuestGuruHistory, v1.0.5
QuestGuruHistory8, v1.0
QuestGuruTracker, v1.2.1
QuestHelper, v1.0.18-beta
SlideBar, v5.5.4270 (WombatII)
Stubby, v5.5.4270 (WombatII)
Wr2, v
(ck=9cb)