Hi Guys, I've got an old Acer 3000 laptop with a windows xp home COA on the base. I've had to replace the hard drive and I used a new Windows XP Home SP3 install disk. It refused to use the COA on the base so I checked online and found a COA code that was accepted. My plan was to install it then change the licence to the genuine one on the base. I've completed the install etc and selected to activate windows but it fails and refuses to let me use the genuine code on the base. What should I do? I dont have a genuine Acer install disc and I dont really want to reinstall etc. Any ideas?