Previous versions of the Linux kernel used in the earlier versions of openSUSE did not support the 8187b wireless card and hence have to be used with ndiswrapper and Windows version of the driver.
If you are using a Realtek rtl8187b wireless device then it is good to upgrade your openSUSE to openSUSE 11.1. Alternatively, you can upgrade yourLinux Kernel to the2.6.27 or later to have native driver support and remove all ndiswrapper configurartions for better performance.
To check you Linux Kernel Version
opensuse11:~ # uname -a
Linux opensuse11 18.104.22.168-9-default #1 SMP 2008-12-04 18:10:04 +0100 x86_64 x86_64 x86_64 GNU/Linux