Logitech G5 Rev. 2, under warranty
I've been playing TF2 a lot lately and I still notice the same problem as before. The mouse occasionaly freezes for 2-3 seconds then everything goes on like nothing happened. Interestingly this problem only occurs in Team Fortress 2. Couldn't repeat this in Portal despite playing through all 19 levels. It also behaves normally under Windows (XP SP3).
Any ideas?