I have a late 2009 MBP spec as follows:
15" MBP
2.53Ghz Core 2 Duo
4Gb Ram
320Gb Hdd
I also have a wireless desktop with the apple keyboard and magic mouse which generally work fine. But I sometimes suffer some serious lag when using the mouse, it becomes near impossible to use and it doesn’t matter how far or how close I am to the MacBook when using it. This is also the case for the keyboard at time the keystrokes are trying to catch up with themselves
I have tried new batteries etc but doesn’t help. Is this a known issue?
15" MBP
2.53Ghz Core 2 Duo
4Gb Ram
320Gb Hdd
I also have a wireless desktop with the apple keyboard and magic mouse which generally work fine. But I sometimes suffer some serious lag when using the mouse, it becomes near impossible to use and it doesn’t matter how far or how close I am to the MacBook when using it. This is also the case for the keyboard at time the keystrokes are trying to catch up with themselves

I have tried new batteries etc but doesn’t help. Is this a known issue?