Strange lagging

Lately ive experienced some strange lags while using wireless lan and specially using my logitech G7, it usally only happen when transfering over msn, but then the mouse goes "Lag-mode" and you can not control it cause of the lag, the touchpad does to some extend lag aswell. I havent experinced, or atleast noticed, it while using normal lan.

I havent noticed it before either, just saw it yesterday and now ive faced it once again, while transfering over msn. Even tho ive transfered over msn using wireless before and still using the G7.

Specs are in sig.

 

Go to device manager,switch the view to resources,in the IRQ part,Can you see any warning about IRQ conflict.
Also, check the device manager.So versions of FireFox cause lag for the filled cache.If you are using them.Choose tools -> Clear Private Data Check the item : "Clear cache",this should do the trick.
Also try the lastest drivers.
Also as a last resort make sure your laptop is virus-free.

 

There dosent seem to be any IRQ-conflicts, I dont think Firefox is the problem either as it also happens when its closed, and im cleaning cache once a day. I got latest drivers and the comp should be virus free, KIS aint caching anything atleast.

Any other explanation on what can be wrong ? :S

 

Nothing else ?