Intermittent wifi problem...time to replace card?

My A150 is having an intermittent problem. I will be connected and all of the sudden I can't connect to any websites. At the same time, my wife will be on her Dell and have no problem. My wifi symbol shows to be active, but there is no data transfer. Sometimes it will start working again after a few minutes, other times I have to make it disconnect and then reconnect, then everything is fine for a while. An ideas how to fix this? I am running 7 and have tried several different drivers with no difference.

 

Read the following:

http://www.aspireoneuser.com/forum/viewtopic.php?f=34&t=17900

Also, and this can't be overemphasized, you must keep the vent holes clear. If they are blocked the first thing to drop off is the WiFi card from over heating!

 

HOw do I force it to take an older driver?