Dual Boot Loader

Has anyone else experienced Windows fdisking the bootloader on each restart,
thus overwriting your linux bootloader ( I am using grub ) ? If anyone knows
of any tutorials using NTLDR to boot linux ( with grub instead of lilo _)
let me know, thanks...

Btw im still clueless on the pen and wifi. Its strange, the pen works on the
initial compaq screen before windows boots.

-- 
Alvaro