Mouse not working properly

[Delphi.VM]

I finally was able to buy the game and as soon as I start it I notice the mouse does not work to look around. It stutters. Sometimes it works and then stops completely and sometimes it works ok. I did some research and noticed that others have had this same problem (mostly in october), so I found the .ini file and tried that fix and it did nothing to solve my problem. When I try to click to shoot my weapon it does not register at all when this happens. It's like my mouse just doesn't exist for 5-10 seconds at a time. It makes the game unplayable for me until someone can fix this.