Hi guys i have just got a new laptop its a HP 530 dual booted xp and bt2 i have no sound on bt2 and screen resolution is set to 1024 x 768 but looks like 800 x 600 with refresh of 60hz looked on forum but not sure what to do

chipset is Mobile Intel® 945GM Express and audio is Conexant CX20468

if anyone can help that would be greatly appreciated thanks