What steps will reproduce the problem?
1. try to buff using SmartBuff (by scrolling)

What is the expected output? What do you see instead?
Expect to buff.  Instead, nothing happens.

What version of the product are you using?
3.2bDev1

Do you have an error log of what happened?
Date: 2009-08-31 19:53:00
ID: -5
Error occured in: Global
Count: 191
Message: ..\AddOns\SmartBuff\SmartBuff.lua line 2421:
   bad argument #1 to 'find' (string expected, got nil)
Debug:
   (tail call): ?
   (tail call): ?
   [C]: ?
   [C]: find()
   SmartBuff\SmartBuff.lua:2421 SMARTBUFF_CheckUnitBuffs()
   SmartBuff\SmartBuff.lua:2012 SMARTBUFF_BuffUnit()
   SmartBuff\SmartBuff.lua:1720 SMARTBUFF_Check()
   SmartBuff\SmartBuff.lua:4147
      SmartBuff\SmartBuff.lua:4103
AddOns:
  Swatter, v5.6.4424 (KangaII)
  YouArentInAPartyFix, v1.0
  Corpse, v3.2.0.1
  Ace3, v
  AddonLoader, v2.0
  Afterlife, v62779-R2
  Armory, v7.1.2
  ArmoryGuildBank, v7.2
  Atlas, v1.14.2
  AtlasBattlegrounds, v1.14.2
  AtlasDungeonLocs, v1.14.2
  AtlasOutdoorRaids, v1.14.2
  AtlasTransportation, v1.14.2
  AtlasLoot, vv5.07.05
  AtlasQuest, v4.3.5
  AucAdvanced, v5.6.4424 (KangaII)
  AucDb, v5.1.DEV.3583
  AucFilterBasic, v5.6.4424 (KangaII)
  AucFilterOutlier, v5.6.4424.2531
  AucMatchUndercut, v5.6.4424.2531
  AucScanData, v5.6.4424 (KangaII)
  AucStatClassic, v5.6.4424 (KangaII)
  AucStatHistogram, v5.6.4424 (KangaII)
  AucStatiLevel, v5.6.4424 (KangaII)
  AucStatPurchased, v5.6.4424 (KangaII)
  AucStatSales, v5.6.4424.2842
  AucStatSimple, v5.6.4424 (KangaII)
  AucStatStdDev, v5.6.4424 (KangaII)
  AucStatWOWEcon, v5.6.4424.2530
  AucUtilAHWindowControl, v5.6.4424.3311
  AucUtilAppraiser, v5.6.4424.2530
  AucUtilAskPrice, v5.6.4424.3175
  AucUtilAutoMagic, v5.6.4424.3142
  AucUtilCompactUI, v5.6.4424.2530
  AucUtilEasyBuyout, v5.6.4424.3583
  AucUtilFixAH, v5.6.4424 (KangaII)
  AucUtilItemSuggest, v5.6.4424.3108
  AucUtilPriceLevel, v5.6.4424.2545
  AucUtilScanButton, v5.6.4424.2530
  AucUtilScanFinish, v5.6.4424.2530
  AucUtilScanProgress, v5.6.4424.2530
  AucUtilSearchUI, v5.6.4424.3655
  AucUtilSimpleAuction, v5.6.4424.0
  AucUtilVendMarkup, v5.6.4424.2530
  AuraSource, v0.2
  AutoBar, vv3.02.00.24 beta
  Babylonian, v5.1.DEV.130
  BabyWigs, v0.1
  BagSlots, vv1.3.2
  BeanCounter, v5.6.4424 (KangaII)
  BigWigs, v2.0
  BigWigsTBC, v2.0
  BurningMuffin, v
  Capping, v3.2.002
  Cartographer, v2.0
  CartographerBattlegrounds, v2.0
  CartographerCleanup, v1.0
  CartographerCoordinates, v2.0
  CartographerFoglight, v2.0
  CartographerGroupColors, v2.0
  CartographerGuildPositions, v2.0
  CartographerIcons, v1.0
  CartographerIconsCtMapModPack, v1.0
  CartographerIconsDotsPack, v2.4b
  CartographerIconsGathererPack, v1.0
  CartographerIconsMetaMapPack, v1.0
  CartographerIconsSmallBoxPack, v1.2.2
  CartographerIconsSmallDiamondPack, v1.0.1
  CartographerLookNFeel, v2.0
  CartographerMinimapCoords, v3.10a
  CartographerNotes, v2.0
  CartographerPOI, v2.0
  CartographerQuestInfo, v
  CartographerWaypoints, v2.0
  CartographerZoneInfo, v2.0
  Castbars, v
  ChatTimeStamps, v1.6
  ClassLoot, vr85
  CloseUp, v3.2.001
  Configator, v5.1.DEV.130
  DamnAutoComplete, v
  DebugLib, v5.1.DEV.130
  Decursive, v2.4.2.1-18-gd36b5ea
  DotDotDot, v1.13.$Revision$-W
  DrDamage, vr1071
  DurabilityStatus, v
  EasyMail, v
  Emo, v1.2.3
  Enchantrix, v5.6.4424 (KangaII)
  EnhancedCharStats, v1.4
  Examiner, v09.08.13
  FlightMap, v
  FocusFrame, v2.5.2
  FollowMe, v
  Fortress, v1.13-beta1-1-gb43d049
  Gatherer, v3.1.14
  GathererHUD, v3.1.14
  GathererDBWowhead, v1.0.2009-02-18
  GatherMate, vv1.21
  GatherMateSharing, v1.3
  GoGoMount, v0003020450
  GoGoPet, v0003020000
  GoingPrice, v3.2
  GoingPriceAllakhazam, v3.2.1251730072
  GoingPriceWowhead, v3.2.1251729487
  GryphonsRemover, v3.2
  HiddenReps, v0.1
  Informant, v5.6.4424 (KangaII)
  InspectEquip, v1.5.0
  InterfaceOptionsFrameOpenToCategoryFix, v1.2.3
  ItemDataCache, v1.303
  LinkWrangler, v1.79
  LittleWigs, v3.0.0
  LittleWigsTBC, v
  LiveDamage, v003
  MacroBank, v1.5
  MaterialsTracker, v30200.01
  MillHelp, v1.2.2
  MillHelpGlyphs, v1.2.2
  MobInfo3, v0.801
  MobMap, v344
  MonkeyBuddy, v
  MonkeyLibrary, v
  MonkeyQuest, v
  MonkeySpeed, vv3.0.0
  Nauticus, v3.2.0
  Omen, v3.0.8
  OmniCC, v2.5.6
  Outfitter, v4.8b8
  Overachiever, v0.46
  PartySpotter, vv5.16.30100
  Pawn, v1.2.4
  ProfessionsBook, v3.0.4
  PvPFlagBroker, v1.01
  qComments, v3.2.1
  QuestAnnouncer, v0.5
  QuestHelper, v1.1.13
  QuestHistory, v
  QuestLogLevelPatch, v
  RatingBuster, v
  ReagentTree, v0.42
  RecipeRadar, v1.32
  Recount, v
  RecountDeathTrack, v
  RecountThreat, v
  ScreenPlus, v
  SexyMap, v
  SilverDragon, vv2.3.2-2-g75a0d2b
  SkillUp, v2.0
  SlideBar, v5.6.4424 (KangaII)
  SmartBuff, v3.2bDev1
  SomeAssemblyRequired, v
  Stubby, v5.6.4424 (KangaII)
  WhatsThis, v
  ZOMGBuffs, v$Revision: 97 $
  ZOMGBuffsBlessingsManager, v$Revision: 79 $
  ZOMGBuffsBuffTehRaid, v$Revision: 79 $
  ZOMGBuffsLog, v$Revision: 79 $
  ZOMGBuffsPortalz, v$Revision: 79 $
  ZOMGBuffsSelfBuffs, v$Revision: 79 $
  BlizRuntimeLib_enUS v3.2.0.30200 <us>
  (ck=10f1)

Please provide any additional information below.