107d Slow!!!!!

[[TPK]Loki]

hi

ive just installed a pioneer 107d in my pc
the 107 is backing up dvd's ok, its just so slow. the read rate is 1.9-2x and the buffer goes crazy (jumps up and down as low as 10%. the write rate is the same as the read speed its taking 30 mins to do a disc at least and also dvd shrink takes 36 mins:O even when using dvd DVD Decrpter its only reads at 2x have tried the drive in a friends computer and it works fine the way it should speed, buffer etc.tried using my friends ram as well still the same also a new ide cable.
im running windows xP home, the 107 is my primary master drive and my hard drive is the primary slave drive
im running:
1gb of ram
p4 2.8
this should be plenty
any help will be greatly appreciated.
thanks
John..........
ps do i need firmware but don't think i should if so where and how??