UT 2004 Critical Error

[rfyou88]

i dont kno what this means. PLease help me fix this awful problem

UT2004 Build UT2004_Build_[2004-03-03_02.42]

OS: Windows XP 5.1 (Build: 2600)
CPU: GenuineIntel Unknown processor @ 1995 MHz with 255MB RAM
Video: 64MB DDR NVIDIA GeForce4 MX 420 with TV Out (Dell) (2841)

Assertion failed: InPos<=Size [File:..\..\Core\Inc\FFileManagerWindows.h] [Line: 87]

History: FArchiveFileReader::Seek <- ULinkerLoad::Seek <- LoadImportMap <- ULinkerLoad::ULinkerLoad <- UObject::GetPackageLinker <- UObject::StaticLoadObject <- (Core.Class badboys.badboys NULL) <- UObject::execClassContext <- (xPawn DM-1on1-Spirit.xPawn @ Function XGame.xPawn.Setup : 0078) <- UObject::ProcessEvent <- (xDeathMatch DM-1on1-Spirit.xDeathMatch, Function UnrealGame.DeathMatch.PendingMatch.Timer) <- AActor::Tick <- TickAllActors <- ULevel::Tick <- (NetMode=0) <- TickLevel <- UGameEngine::Tick <- Level Spirit <- UpdateWorld <- MainLoop

[Radical Dreamer]

i dont kno what this means. PLease help me fix this awful problem

UT2004 Build UT2004_Build_[2004-03-03_02.42]

OS: Windows XP 5.1 (Build: 2600)
CPU: GenuineIntel Unknown processor @ 1995 MHz with 255MB RAM
Video: 64MB DDR NVIDIA GeForce4 MX 420 with TV Out (Dell) (2841)

Assertion failed: InPos<=Size [File:..\..\Core\Inc\FFileManagerWindows.h] [Line: 87]

History: FArchiveFileReader::Seek <- ULinkerLoad::Seek <- LoadImportMap <- ULinkerLoad::ULinkerLoad <- UObject::GetPackageLinker <- UObject::StaticLoadObject <- (Core.Class badboys.badboys NULL) <- UObject::execClassContext <- (xPawn DM-1on1-Spirit.xPawn @ Function XGame.xPawn.Setup : 0078) <- UObject::ProcessEvent <- (xDeathMatch DM-1on1-Spirit.xDeathMatch, Function UnrealGame.DeathMatch.PendingMatch.Timer) <- AActor::Tick <- TickAllActors <- ULevel::Tick <- (NetMode=0) <- TickLevel <- UGameEngine::Tick <- Level Spirit <- UpdateWorld <- MainLoop

When did this begin happening? Was anything changed before this happened? Has it ever worked? Have you tried reinstalling the game?