ati xpress 200m

I'm sure this has been answer and i really apologize for posting, but i've searched threads and threads over this. I have not had this problem on any of my machines except this one. This laptop is a HP pavilion dv5000us. From all i've learned and found out it's running a ati radeon xpress 200m video card. I got it installed on hard disk and used fix-splash800 to try to fix xwindows but it didn't help. I even used a ati driver install to fix it but when i install the new ati catalyst it says i don't have a ati card. But it windows XP it works fine as a driver. Normal boot is fine, but when i startX stuff is so big i can't click on anything. I'm gonna try an older ati driver but nothing so far has worked. Any help appreciated.