phew!!! just struggling to replace built-in kernel driver for rtl 8187 which using RTL8187se. The built-in kernel driver give me such problem on unconsistent speed and disconnected from the net. Here is the solution :
wget http://download.aircrack-ng.org/drivers/rtl8187_linux_26.1010.zip
wget http://dl.dropbox.com/u/1522424/rtl8187_2.6.34.patch
unzip rtl8187_linux_26.1010.zip
cd rtl8187_linux_26.1010.0622.2006
tar xzf drv.tar.gz
tar xzf stack.tar.gz
patch -Np1 -i ../rtl8187_2.6.34.patch
make
make install
rmmod r8187 rtl8187 mac80211 cfg80211
modprobe r8187 Hope this help!