I installed ATITool 0.26 yesterday and when I was playing BF 2142 I noticed that my keyboard input would sometime be lagging, even though my ping was always under 30 and the mouse response was fine. I assumed it was the server and just gave up for the night, but today when I was playing it kept happening again. The only new software was ATITool, so I tried rolling back to 0.24 and it hasn't happened since.
I'm not 100% sure it was ATITool but I suspect it could be linked to it - are there any new settings that could affect keyboard input W1zz? It's a wireless USB and never had any problems before, and it seems fine again now. I didn't notice any lag when I was typing normally but I might be wrong.