Make sure you have a copy of the PROset installer on hand.
If you are using Windows XP. Try uninstalling the PROSet software by going to Control Panel-> Add/Remove Programs
click on Intel PROset wireless software found in the program list, click on the Change/Remove to uninstall.
Would advise you get the latest wireless software from your notebook vendor. The one available on Intel website is a generic version of 12.x. Can't guarantee of its compatibility in case you want to try it out.
Thank you for your support. I was traveling and wasn't able to try what you've suggested. I don't have a copy of PROSet installer so I'll try and download one (not sure where to get it). I'll also check Toshiba's support page first as you suggested. I have the orginal CDs that came with the laptop but they're apparently for restoring the orginal software completely.
I checked Toshiba first as you suggested. I downloaded their "Intel PROSet Utility for Windows XP" version 10.5.0.174 from this page: http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/modelContent.jsp?ct=DL&os=&category=&moid=1468771&rpn=PSMB0U&modelFilter=M115-S3094&selCategory=3&selFamily=1073768663
I have: Intel(R) PRO/Wireless 3945ABG Network Connection. Driver Version 10.5.1.57 so I don't know if that is a problem.
I ran the utility and chose the repair option. It didn't repair it but actually disabled it. I am now working through Windows (windows is managing wireless). The Intel PROSET icon appears at the bottom right of the taskbar. When I place the mouse over the icon a message says "Windows is managing the wireless adapter. Click here to use Intel Proset/Wireless". I click on the icon and nothing happens. If I run Intel Proset through the Start menu the window appears but I can't choose any options. I then cannot close this window and only swap to a different one.
My wireless is now working fine through Windows. I am considering unistalling Intel Proset and then reinstalling it but may just stay with the Windows manager.