Did a complete uninstall, removed every item I could find relating to Red Orchestra, re-installed and verified (twice) and still get lock-ups.
Logfile reads thus:-
Uninitialized: Log file open, 07/20/06 17:04:07
Uninitialized: STEAMAUTH : SteamStartup successful
Init: Name subsystem initialized
Init: Detected: Microsoft Windows XP 5.1 (Build: 2600)
Init: Version: 3339 (128.29)
Init: Compiled: Jun 20 2006 14:55:02
Init: Command line:
Init: Character set: Unicode
Init: Base directory: d:\half life 2\steamapps\common\red orchestra\System\
Init: Ini:RedOrchestra.ini UserIni:User.ini
Init: Build label: Build RedOrchestra_Build_[2005-11-27_10.48]
Init: Object subsystem initialized
Localization: No localization: RedOrchestra.General.Start (int)
Log: nv4_disp.dll/NVIDIA GeForce 7900 GT
Log: Game class is 'GameInfo'
Log: Bringing Level Entry.myLevel up for play (0) appSeconds: 4.426000...
ScriptLog: GameInfo::InitGame : bEnableStatLogging False
Log: Browse: ROintro.rom?Name=ROPlayer?Class=Engine.Pawn?Character=G_Heer1?team=1?Sex=M
Log: Collecting garbage
Log: Purging garbage
Log: Garbage: objects: 26883->26883; refs: 264383
Log: Game class is 'CinematicGame'
Log: Bringing Level ROintro.myLevel up for play (0) appSeconds: 5.937000...
Log: (Karma): Autodetecting CPU for SSE
Log: (Karma): Using SSE Optimizations
ScriptLog: GameInfo::InitGame : bEnableStatLogging False
Progress: Exporting RO-StalingradKessel...
Log: Exporting RO-StalingradKessel.....Successful!
Progress: Exporting RO-Rakowice...
Log: Exporting RO-Rakowice.....Successful!
Progress: Exporting RO-Ogledow...
Log: Exporting RO-Ogledow.....Successful!
Progress: Exporting RO-Odessa...
Log: Exporting RO-Odessa.....Successful!
Progress: Exporting RO-KrasnyiOktyabr...
Log: Exporting RO-KrasnyiOktyabr.....Successful!
Progress: Exporting RO-Konigsplatz...
Log: Exporting RO-Konigsplatz.....Successful!
Progress: Exporting RO-Kaukasus...
Log: Exporting RO-Kaukasus.....Successful!
Progress: Exporting RO-HedgeHog...
Log: Exporting RO-HedgeHog.....Successful!
Progress: Exporting RO-Bondarevo...
Log: Exporting RO-Bondarevo.....Successful!
Progress: Exporting RO-Basovka...
Log: Exporting RO-Basovka.....Successful!
Progress: Exporting RO-Barashka...
Log: Exporting RO-Barashka.....Successful!
Progress: Exporting RO-BaksanValley...
Log: Exporting RO-BaksanValley.....Successful!
Progress: Exporting RO-Arad...
Log: Exporting RO-Arad.....Successful!
ScriptLog: ROGUIController initialized
Log: ALAudio: Using DirectSound to record audio.
Warning: Failed to load 'NULL': Can't resolve package name
Warning: Failed to load 'Class None.': Can't resolve package name
Warning: Failed to load 'NULL': Can't resolve package name
Warning: Failed to load 'Class None.': Can't resolve package name
ScriptLog: New Player ROPlayer id=84159f68256957d3d67b35cb78cb770f
Localization: No localization: RedOrchestra.General.Product (int)
Localization: No localization: RedOrchestra.General.Product (int)
Localization: No localization: RedOrchestra.General.Product (int)
Localization: No localization: RedOrchestra.General.Product (int)
Log: Opened viewport
Log: Enter SetRes: 800x600 Fullscreen 1
Log: Using back-buffer format 22(32-bit)
Log: Using depth-buffer format 77(32-bit)
Log: Creating device
Log: xD3D9Helper::Init (QuadEmulation)
Log: POSTFX - TripPostFX::Init successful
Log: OS doesn't support IME.
Log: Startup time: 13.099000 seconds
Localization: No localization: RedOrchestra.General.Run (int)
Log: Precaching: ROintro.LevelInfo0
Log: Static mesh batches: 0 vertex bytes, 0 index bytes
Log: Allocating 16384 byte dynamic index buffer.
Log: Allocating 65536 byte dynamic vertex buffer.
Log: Finished precaching geometry in 0.128 seconds
Log: Finished precaching textures in 0.001 seconds
ScriptLog: MainMenu: starting music Menu_music_old
Log: URL: Adding default option Name=ROPlayer
Log: URL: Adding default option Class=Engine.Pawn
Log: URL: Adding default option Character=G_Heer1
Log: URL: Adding default option team=1
Log: Browse: Index.rom?disconnect?Name=ROPlayer?Class=Engine.Pawn?Character=G_Heer1?team=1
Log: Failed; returning to Entry
Log: GP=FALSE
Log: Spawning new actor for Viewport WindowsViewport
ScriptLog: New Player ROPlayer id=84159f68256957d3d67b35cb78cb770f
Log: Static mesh batches: 0 vertex bytes, 0 index bytes
Log: Allocating 96480 byte dynamic vertex buffer.
Log: Allocating 111744 byte dynamic vertex buffer.
Warning: Failed to load 'NULL': Can't resolve package name
Warning: Failed to load 'Class None.none': Can't resolve package name
Localization: No localization: Engine.KeyNames.JoyR (int)
Localization: No localization: XInterface.UT2DeferChangeRes.DialogText.Caption (int)
Localization: No localization: XInterface.UT2DeferChangeRes.DialogText2.Caption (int)
Log: Enter SetRes: 1024x768 Fullscreen 1
Log: Using back-buffer format 22(32-bit)
Log: Using depth-buffer format 77(32-bit)
Log: Creating device
Log: xD3D9Helper::Init (QuadEmulation)
Log: POSTFX - TripPostFX::Init successful
Log: Precaching: Entry.LevelInfo0
Log: Allocating 65536 byte dynamic vertex buffer.
Log: Finished precaching geometry in 0.014 seconds
Log: Finished precaching textures in 0.035 seconds
Log: Relaunch:
Log: GetModuleFileName returned d:\half life 2\steamapps\common\red orchestra\System\RedOrchestra.exe
Log: ShellExecute result: 42
Log: appRequestExit(0)
Localization: No localization: RedOrchestra.General.Exit (int)
Exit: Preparing to exit.
Log: Purging garbage
Log: Unbound to Window.dll
Log: Unbound to Core.dll
Log: Unbound to Engine.dll
Exit: Game engine shut down
Log: Unbound to WinDrv.dll
Log: POSTFX - TripPostFX::CleanUp
Exit: Windows client shut down
Log: Unbound to D3D9Drv.dll
Log: Unbound to XGame.dll
Log: Unbound to IpDrv.dll
Log: Unbound to Editor.dll
Log: Unbound to Fire.dll
Log: Unbound to XInterface.dll
Log: Unbound to UWeb.dll
Log: (Karma): Level Karma Terminated.
Log: Unbound to ROEngine.dll
Log: Unbound to ALAudio.dll
Log: Waiting for file streaming thread to finish...
Exit: OpenAL Audio subsystem shut down.
Log: Garbage: objects: 39887->0; refs: 264383
Exit: Object subsystem successfully closed.
Exit: Exiting.
Log: FileManager: Reading 0 GByte 112 MByte 772 KByte 883 Bytes from HD took 2.076002 seconds (2.004002 reading, 0.072000 seeking).
Log: FileManager: 1.381001 seconds spent with misc. duties
Uninitialized: Name subsystem shut down
Uninitialized: Memory Allocation Status
Uninitialized: Curr Memory 0.210M / 4.246M
Uninitialized: Peak Memory 125.852M / 128.297M
Uninitialized: Allocs 734 Current / 3864491 Total
Uninitialized: Log file closed, 07/20/06 17:04:57
Any ideas before RO joins 'TRASH' in bin????