Hello.

 

As soon as I join a server IW4M crashes, it crashes at 'Waiting for other players' part also an error message pops up claiming that 'Modern warfare: iwm4.dat - application error'.

 

I'm playing on a Steam version of MW2, my PC specs are:

http://pastebin.com/wLWV2bsY

 

 

PS.

I could not paste my PC specs here cause it kept telling me that "You are not allowed to post any URLs yet. If you need to display a screenshot, try uploading it as attachment.", even tho I had no link in it.

Delete your config_m2 in your IW4M/Players,

Also close unwanted programs in the background (if) running..