What steps will reproduce the problem?
1. Mhh, I tried to farm minerals, so I wanted to use the HUD. At the beginning all functioned as wanted. But then, on the minimap a node appeared and the HUD froze... I've no idea, why this happened.

What is the expected output? What do you see instead?

What version of the product are you using?
v.1.1.8

Do you have an error log of what happened?

Date: 2011-01-01 22:06:48
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\GatherHud\GatherHud.lua line 250:
   attempt to perform arithmetic on local 'offset' (a nil value)
Debug:
   (tail call): ?
   (tail call): ?
   [C]: ?
   GatherHud\GatherHud.lua:250 FullUpdate()
   GatherHud\GatherHud.lua:183
      GatherHud\GatherHud.lua:129
AddOns:
  Swatter, v3.2.3 (<%codename%>)
  Ace3, v
  ACP, v3.3.12
  Atlas, v1.18.0
  AtlasBattlegrounds, v1.18.0
  AtlasDungeonLocs, v1.18.0
  AtlasOutdoorRaids, v1.18.0
  AtlasTransportation, v1.18.0
  AtlasLoot, vv6.01.02
  AtlasLootBurningCrusade, vv6.01.02
  AtlasLootCataclysm, vv6.01.02
  AtlasLootClassicWoW, vv6.01.02
  AtlasLootCrafting, vv6.01.02
  AtlasLootWorldEvents, vv6.01.02
  AtlasLootWrathoftheLichKing, vv6.01.02
  AucAdvanced, v5.9.4961 (WhackyWallaby)
  AucFilterBasic, v5.9.4961 (WhackyWallaby)
  AucFilterOutlier, v5.9.4961.2531
  AucMatchUndercut, v5.9.4961.2531
  AucStatHistogram, v5.9.4961 (WhackyWallaby)
  AucStatiLevel, v5.9.4961 (WhackyWallaby)
  AucStatPurchased, v5.9.4961 (WhackyWallaby)
  AucStatSales, v5.9.4961.2842
  AucStatSimple, v5.9.4961 (WhackyWallaby)
  AucStatStdDev, v5.9.4961 (WhackyWallaby)
  AucStatWOWEcon, v5.9.4961.2530
  AucUtilAHWindowControl, v5.9.4961.3311
  AucUtilAppraiser, v5.9.4961.2530
  AucUtilAskPrice, v5.9.4961.3175
  AucUtilAutoMagic, v5.9.4961.3142
  AucUtilCompactUI, v5.9.4961.2530
  AucUtilEasyBuyout, v5.9.4961.3583
  AucUtilFixAH, v5.9.4961 (WhackyWallaby)
  AucUtilGlypher, v5.9.4961.2545
  AucUtilItemSuggest, v5.9.4961.3108
  AucUtilPriceLevel, v5.9.4961.2545
  AucUtilScanButton, v5.9.4961.2530
  AucUtilScanFinish, v5.9.4961.2530
  AucUtilScanProgress, v5.9.4961.2530
  AucUtilScanStart, v5.9.4961.4819
  AucUtilSearchUI, v5.9.4961.3655
  AucUtilSimpleAuction, v5.9.4961.4546
  AucUtilVendMarkup, v5.9.4961.2530
  Babylonian, v5.1.DEV.130
  Bagnon, v2.15.1
  BagnonAccountSearch, v1.2
  BagnonForever, v1.1.2
  BagnonTooltips, v
  Bartender4, v4.4.15
  BeanCounter, v5.9.4961 (WhackyWallaby)
  BigWigs, v3.262
  BrokerTimeToDie, v
  ButtonFacade, v4.0.340
  ButtonFacadeDarion, v3.0.3.2
  Clique, vv40000-1.3.2
  Configator, v5.1.DEV.282
  DebugLib, v5.1.DEV.275
  Decursive, v2.6.0.1
  DocsUINameplates, v5.0
  Enchantrix, v5.9.4961 (WhackyWallaby)
  EnchantrixBarker, v5.9.4961 (WhackyWallaby)
  ForteCasting, v
  ForteCooldown, v
  ForteCore, v1.966.2
  ForteDeathKnight, v
  ForteDruid, v
  ForteHealthstone, v
  ForteHunter, v
  ForteMage, v
  FortePaladin, v
  FortePriest, v
  ForteRogue, v
  ForteShaman, v
  ForteSummon, v
  ForteTalent, v
  ForteTimer, v
  ForteVehicle, v
  ForteWarlock, v
  ForteWarrior, v
  Gatherer, v3.2.3
  GathererHUD, v3.2.3
  GathererDBWowhead, v1.0.2010-12-19
  GatherHud, vv1.1.8
  GatherMate2, v1.0.9
  Genie, vr276
  GenieLDB, vr276
  GenieUI, vr276
  Grid, v1.40000.1400-beta
  GridManaBars, v1.04
  GridStatusHealthPercent, v1.3.1
  GridStatusRaidIcons, v40000-2
  Informant, v5.9.4961 (WhackyWallaby)
  LittleWigsTBC, v
  LUI, v3.0
  Mapster, v1.4.0
  MikScrollingBattleText, v5.5.91
  MobMap, v404
  Omen, v3.0.11
  OPie, v
  oUF, v1.5.4
  oUFExperience, v40000.9-Release
  oUFLUI, v
  oUFReputation, v40000.5-Release
  PallyPower, vv4.0.17
  Postal, v3.4.4
  PowerAuras, v4.9
  RatingBuster, v
  Recap, v4.62
  Recount, v
  Routes, vv1.3.3
  rTimeToDie, v
  SlideBar, v3.2.3 (<%codename%>)
  StatBlockCore, v2.67
  Stubby, v5.9.4961 (WhackyWallaby)
  TipTop, v2.3
  TomTom, vv40000-1.0.9
  Transcriptor, v3.3
  WIM, v3.5.1
  XLoot, v0.91.1
  XLootGroup, v0.61
  XLootMaster, v0.81
  XLootMonitor, v0.71
  BlizRuntimeLib_deDE v4.0.3.40000 <eu>
  (ck=cbc)

Please provide any additional information below.