Hi...
This utility mentioned in
my older post might help you to identify the related unknown hardware.
EDIT: I took and updated the latest beta of UnknowDevices with newest hardware reference files (for PCI ID and USB), just to make it easier for you. You can download it
on RapidShare. Download the archive, unzip the archive named UnknownDevices.zip somewhere (not the DeviceLists.zip) and run the executable.
Note: I was just checking support site for
MegaBook VR321. As mentioned here, it should be equipped with
AzureWave's AW-GE780 WLAN module, which (as most or all their products) uses WLAN chipset from
Atheros.
There is no official source for Atheros's drivers, but after you identify the right WLAN chipset with UnknownDevices, go to website called
Atheros.cz and you'll find newest drivers without a problem.