Total Novice whats the difference between a Acer 3003LCi and a Acer 3003WLCi??

Check the BIOS settings to see if the wireless card installed and enabled.
If it is enabled then install the wireless driver.
Download the wireless and device drivers from the Acer WEB site. Makesure you select the model of your laptop the drivers you that require thatmatches the Windows version that is installed on your laptop. Use this link toget to the Acer support: -
http://www.acersupport.com/drivers_download.aspx

No, Laptops are not designed to upgrade CPU's. Sorry.

go to official acer site choose your model and operating system and download if theres a newer driver for your video card. Please vote.

Visit the following link......
http://www.retrevo.com/search/v2/jsp/mytrevo/myTrevo.jsp?page=man

reinstall the computer again
swipe it and start again
if you have eRecovery installed on your machine then reinstalling should be about 45 min
At the very least you will have a usable machine straight away

Hope youve already saved your important stuff

remove the memory then make a clean or replace a new memory

kindly visit the link provided www.download.com
and you can find generic driver for your device

Mine did that I just blew it out with some compressed air blow it out the opposite way of the air flow it fixed mine hasn't shut down since.

User Guide for Aspire 3000/5000 Series:

AcerPanAm.com/us...

Can't recommend anything if we don't know what type of laptop.

Make, model #, ect.......