the Toshiba wireless drivers for Windows 7? It sure sounds like a driver issue, and you say you've got the latest for your printer. That leaves that one.
I installed Win7 on my laptop and now it won't communicate with my wireless printer. Printer is a Lexmark X4650 Laptop is a Toshiba Satellite L305D. It has 3MG Ram ad 150Gigs of free space on 230gig hard drive. I downloaded and installed Lexmark's Win 7 driver. Anyone have any suggestions?