markings

hi can anyone tell me how to remove markings of alphabets on videos tthnx

guys my friend has an HP desktop. his config is Celeron D 2.0 Ghz 256 mb RAM intel 865 chipset. the warranty on the desktop has run out, so he wants to add an agp slot to the mobo. the motherboard has markings (a space with lined silver dots) wherin u it appears that he can fit an agp...