Reappearing Error Message: Dell Wireless WLAN Card Wireless Network Controller stopped working and was closed.

In 2008 I had trouble with this Dell Inspiron 1420, under warranty I called and downloaded two drivers, one for my wireless card and another for my Audio.  Less than a month later I had trouble with the wireless card & called Dell Again but seeing as my warranty expired they refused to help despite this probably being a continuation of the same problem.  I found some drivers on their site & things seemed to be working alright until my computer got infected with Security Tools Malware.  After starting the clean up & being able to use the computer I occassionally get the following error message:

           Dell Wireless WLAN Card Wireless Network Controller  stopped working and was closed

          A problem caused the application to stop working correctly.  Windows will notify you if a solution is available.

I try to follow the instructions---swear I'm not a total idiot but the Windows notification only tells me to go to the card's site to download new drivers.  For the life of me I keep findinig different names for this card all over can someone tell me where to DEFINATIVELY locate the actual card &/or network controller that I need to download an appropriate driver?

I have tried finding some drivers and they all appear to already be on my computer.  I re-install them and the problem seems to persist.

I rarely use my wireless card as I have a wired network at home and the error message pops up VERY SPORADICALLY so I'm never sure if I've fixed it or how to check if I've fixed it.  There is a WiFi spot by my house & I never seem to have trouble accessing it but unsure if this problem is stable or if it just appears & freaks out some time.

If anyone can help out on this I would be greatful--I just have this stinking feeling that when I REALLY need the wireless thing that will be the day it actually stops working--Murphy's Law.

Thanks!