Hello and welcome everyone, I'm having an issue with my ASUS G1 laptop (full specs here http://en.gentoo-wiki.com/wiki/Asus_G1). I'm kinda desperate as no one seems to find any suitable solution. I asked for help on many forums already, so let's say I MSFN's are my last hope So here is my issue : I've been using Vista for a long time, being pre-installed on my ASUS notebook, till I decided to install Windows XP aside. The main purpose of that dual boot system was to set a clean & french install of Windows XP only to run my games and get a real performance boost compared to Vista. My problem is that I'm getting awful performance under Windows XP. For instance, everytime the hard drive is working, mouse movement stutters ; it also takes an unusual time to run not so heavy applications such as Firefox web browser (takes under 20 seconds on Windows XP compared to 3 seconds on Vista). I know that I shouldn't get such a low performance, especially on Windows XP, so there is definitely something wrong here. I immediatly thought about drivers ; so far, when I was done with the XP installation & Windows Updates, I installed the intel chipset drivers, ACPI drivers and last, Nvidia drivers. Nothing helped, the overall performance is still slow, and mouse movement is anything but smooth whenever I run applications. Of course, I tried different drivers (first I've been downloading Windows XP drivers from Asus Website, then the newest versions of Intel's, etc), but nothing helped. I should add that I didn't install any specific driver on my Vista partition and the performance is okay there (no matter how many applications I run, it goes blazing fast and mouse movement remains perfectly smooth and precise). Some people from the official ASUS forums told me about the integration of SATA drivers within my XP installation CD ;I've already tried that, but maybe I did it wrong. Just in case you might need to know, these are all the informations I could gather about my Chipset, on my Vista installation (which works perfectly fine and has no lag at all) : http://img14.imageshack.us/i/22719399.jpg/ I've already burned a custom Windows XP CD, with the following configuration : Under Nlite, I've chose to integrate drivers and make it a bootable CD. On the next step, I hit the Insert button, Single Driver, hit iaAHCI.inf (from the unpacked floppy disk that you mentioned, though I already had it before), and selected the chipset that seemed to match the most : http://img14.imageshack.us/i/79663077.jpg/ Still, the issue ain't gone ... Is there anything I did wrong ? Thanks in advance for your help, and sorry for this long & annoying story