Bugged about once an hour, chat goes crazy, any help?

[Expediency]

I have had this issue for quite a while but lately it is so bad that it is affecting my ability to play and almost gotten me killed today so I've decided to ask for help.

The problem is hard to explain.. I will be typing (I type a lot, I do not use voice chat) and all of a sudden im bugged. The "chat cursor" (not my mouse, but the blinking line that shows where you are typing your characters in the chat box) just goes where ever it wants. Moves to the front or back or middle of the line, sometimes after only typing one or two characters. This makes it so I can not type any commands at all. This is happening at least once an hour.

I can temporarily fix it about 2/3 of the time by minimizing the screen. When that does not work I have to camp out, and that fixes it most of the time. When that doesnt fix it, I have to log completely out then back in.

I am on a laptop that is running windows 7. Its about two years old and runs the game with no trouble other than this. I am running nvidia geforce GT 630m 1gb card according to the sticker on the machine.

I have not added any legal (or illegal) third party programs to the game. I run it completely unaltered. No damage meters or UIs or whatever the cool kids are doing.

Any help?