We could if you can tell us your graphic card brand, model and version. But if in case you want to try and do it yourself, Google for these keywords and most of the time you will get the most relevant answer on the top 1 to 10 results.

Google "brand model video card driver"
brand : vcard brand
model : vcard model

e.g. Ati Radeon 9200 video card driver

Hope this helps.