C++ runtime error

Can anyone please help me. On my main account (lvl 69 one hand warrior) i get a runtime error everytime i start to fight. I can kill 2 mobs, at the third, the error kicks in and disconnects me. I roamed the internet, all i could find was an advise to upgrade the drivers of my videocard (NVidia 7600 GT). Although an upgrade was not possible because of the fact i already used the latest drivers, i uninstalled and reinstalled the drivers. The problem was not solved. I also read there could be an issue with dual or quad core cpu's, i have a single core cpu. I also reinstalled directx and reregistered every dll in the runtime library.

Does anyone recognize this problem and knows how to deal with it?

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TY John, but i already read that post. As i said in my post, i don't have a dual or quad core cpu. But thanks anyway.

Hi guys, i found the solution to the runtime error. I suppose that if it happens, some wrong code is written in the save or config file. I logged in on another PC, there the problem did not occur. And i closed it properly. After that i was able to play again on my own PC.