Painkiller video game Crashes during Swamp Scene

I have a SOLTEK SL-75FRN2 motherboard with Nforce 2 MCP Chipset, AMD 2500 Barton Processor and GEIL Golden Dragon Ultra PC3200 400mhz DDR memory (2-512Mb sticks). During the Swamp level of painkiller the game crashes and shows a dialog box message: /Data/Lscripts/Main/GObjects.lua:157? /Data/Lscripts/Main/GObjects.lua:161:Tick /Data/Lscripts/Main/Game.lua:465:Tick /Data/Lscripts/Main/Game.lua:1550:Game_Tick This occurs using an ATI 9800XT or Nvidia 6600GT Video card. I also tried with memory sticks set-up for Dual channel and I think it is called single channel mode. Also updated the Nforce 2 drivers to the latest and the problem still exist. I wanted to update the BIOS but it looks as though SOLTEK is out of business. My guess is its a motherboard problem but I do not know what else to try. Does anyone out there have the same issue or can suggest something it would be greatly appreciated. Thank you