What steps will reproduce the problem?
1. I have latest version installed
2. I have tried deleting my saved variables
3. I have tried disabling all other addons other than NotesUNeed - has made no difference
4. Also completely uninstalled NuN via curse (including settings) and reinstalled, still the same.

What version of the product are you using?
v6.70.40100 (installed over the top of v6.68.40000 as shown in the dont read me file)

Do you have an error log of what happened?
Date: 2011-05-30 19:03:18
ID: 4
Error occured in: Global
Count: 1
Message: ..\AddOns\NotesUNeed\NotesUNeed.lua line 3840:
attempt to concatenate field 'unit' (a nil value)
Debug:
[C]: ?
NotesUNeed\NotesUNeed.lua:3840: NuN_ShowNote()
NotesUNeed\NotesUNeed.lua:8825: NuN_NewContact()
NotesUNeed\NotesUNeed.lua:3478: NuN_FromTarget()
[string "*:OnClick"]:1:
[string "*:OnClick"]:1
AddOns:
Swatter, v5.10.5098 (CrouchingKangaroo)
Altoholic, v4.1.001b
Atlas, v1.19.2
AtlasArena, v1.3.3
AtlasBattlegrounds, v1.19.2
AtlasDungeonLocs, v1.19.2
AtlasOutdoorRaids, v1.19.2
AtlasTransportation, v1.19.2
AtlasLoot, vv6.03.02
AtlasLootLoader, vv6.03.02
AtlasQuest, v4.6.4
AucAdvanced, v5.10.5098 (CrouchingKangaroo)
AucStatHistogram, v5.10.5098 (CrouchingKangaroo)
AucStatiLevel, v5.10.5098 (CrouchingKangaroo)
AucStatStdDev, v5.10.5098 (CrouchingKangaroo)
AucUtilFixAH, v5.10.5098 (CrouchingKangaroo)
AucUtilScanProgress, v5.10.5098.2530
AucUtilSimpleAuction, v5.10.5098.4546
Babylonian, v5.1.DEV.130
BadBoy, vv6.491
BadBoyCCleaner, v3.26
BadBoyLevels, v2.77
Bartender4, v4.4.18
Configator, v5.1.DEV.282
CTViewport, v4.004
CurseProfiler, v
DataStore, v4.1.001
DataStoreAchievements, v4.1.001
DataStoreAgenda, v4.1.001
DataStoreAuctions, v4.1.001
DataStoreCharacters, v4.1.001
DataStoreContainers, v4.1.001
DataStoreCrafts, v4.1.001
DataStoreCurrencies, v4.1.001
DataStoreInventory, v4.1.001
DataStoreMails, v4.1.001
DataStorePets, v4.1.001
DataStoreQuests, v4.1.001
DataStoreReputations, v4.1.001
DataStoreSpells, v4.1.001
DataStoreStats, v4.1.001
DataStoreTalents, v4.1.001
DBMCore, v
DebugLib, v5.1.DEV.275
ForteCasting, v
ForteCooldown, v
ForteCore, v1.975.1
ForteDeathKnight, v
ForteDruid, v
ForteHealthstone, v
ForteHunter, v
ForteMage, v
FortePaladin, v
FortePriest, v
ForteRogue, v
ForteShaman, v
ForteSoulstone, v
ForteSummon, v
ForteTalent, v
ForteTimer, v
ForteVehicle, v
ForteWarlock, v
ForteWarrior, v
Gatherer, v3.2.3
GearScore, v4.7.00.04
Gladius, vv2.0.16-beta
Glamour, v1.4.1
Gnosis, vv2.80
Grid, v4.1.0.1441
Mendeleev, v3.0
MikScrollingBattleText, v5.5.100
MonkeyBuddy, v
MonkeyLibrary, v
MonkeyQuest, v
MonkeyQuestLog, v
NotesUNeed, v6.70.40100
Omen, v3.1.2
OmniCC, v4.1.pancakes6
Outfitter, v5.2.2
Overachiever, v0.63
PitBull4, vv4.0.0-beta28
PitBull4Aggro, vv4.0.0-beta28
PitBull4AltPowerBar, vv4.0.0-beta28
PitBull4Aura, vv4.0.0-beta28
PitBull4Background, vv4.0.0-beta28
PitBull4BlankSpace, vv4.0.0-beta28
PitBull4Border, vv4.0.0-beta28
PitBull4CastBar, vv4.0.0-beta28
PitBull4CastBarLatency, vv4.0.0-beta28
PitBull4CombatFader, vv4.0.0-beta28
PitBull4CombatIcon, vv4.0.0-beta28
PitBull4CombatText, vv4.0.0-beta28
PitBull4ComboPoints, vv4.0.0-beta28
PitBull4ExperienceBar, vv4.0.0-beta28
PitBull4HealthBar, vv4.0.0-beta28
PitBull4HideBlizzard, vv4.0.0-beta28
PitBull4Highlight, vv4.0.0-beta28
PitBull4HostilityFader, vv4.0.0-beta28
PitBull4LeaderIcon, vv4.0.0-beta28
PitBull4LuaTexts, vv4.0.0-beta28
PitBull4ManaSpark, vv4.0.0-beta28
PitBull4MasterLooterIcon, vv4.0.0-beta28
PitBull4PhaseIcon, vv4.0.0-beta28
PitBull4Portrait, vv4.0.0-beta28
PitBull4PowerBar, vv4.0.0-beta28
PitBull4PvPIcon, vv4.0.0-beta28
PitBull4QuestIcon, vv4.0.0-beta28
PitBull4RaidTargetIcon, vv4.0.0-beta28
PitBull4RangeFader, vv4.0.0-beta28
PitBull4ReadyCheckIcon, vv4.0.0-beta28
PitBull4ReputationBar, vv4.0.0-beta28
PitBull4RestIcon, vv4.0.0-beta28
PitBull4RoleIcon, vv4.0.0-beta28
PitBull4SoulShards, vv4.0.0-beta28
PitBull4Sounds, vv4.0.0-beta28
PitBull4ThreatBar, vv4.0.0-beta28
PitBull4VisualHeal5, vv4.0.0-beta28
PitBull4VoiceIcon, vv4.0.0-beta28
Postal, v3.4.9
QuestHistory, v4.1.0
RatingBuster, v
Recount, v
Reforgenator, v1.3.7
SexyMap, v
SlideBar, v5.10.5098 (CrouchingKangaroo)
Stubby, v5.10.5098 (CrouchingKangaroo)
TidyPlates, v6.2.1 Revision: 275
TidyPlatesCleanPlates, v1.9g
TidyPlatesGraphite, v
TidyPlatesGrey, v
TidyPlatesNeon, v
TidyPlatesQuatre, v
TidyPlatesHub, v
Titan, v5.0.5.40100 - Revision 519
TitanBag, v5.0.5.40100
TitanClock, v5.0.5.40100
TitanCritLine, v0.7.1
TitanCurrency, v5.1
TitanDurability, v1.22
TitanGold, v5.0.5.40100
TitanLocation, v5.0.5.40100
TitanLootType, v5.0.5.40100
TitanMail, v4.05
TitanMyCurrency, v1.3.7
TitanPerformance, v5.0.5.40100
TitanProfessions, v4.0.2
TitanRepair, v5.0.5.40100
TitanReputation, v3.7.2
TitanRestPlus, v
TitanSocial, v4.1.0r6
TitanVolume, v5.0.5.40100
TitanXP, v5.0.5.40100
TLootdb, v0.40-4.1
XLoot, v0.91.1
BlizRuntimeLib_enUS v4.1.0.40100 <eu>
(ck=10e6)