I installed Kubuntu 10.10 on my new laptop, my laptop is Compaq CQ62- 308AX. It has Ralink 3090 wifi, which is not automatically detected by Kubuntu. Even the restricted driver manager does not show any option for this device. So I downloaded the driver from Ralink site (http://www.ralinktech.com/support.php?s=2). It is in the source format. I thought I might have to patch the kernel source. I went through the readme file and I found that I don’t have to compile the kernel ( yippee an hr saved). Only the device driver source is needed to be compiled.