donross

i have problem in uploading images on my browser via PHP or any server side scripting generated pic uploader (for example uploading pic in forums). at first i suspected my PC was attacked by some kind of bug. what i did was reformatting my PC to save some time and easiest way to fix it. but still the same error goes. i cant find any problems since my PC is just reformatted recently. i already tried to disabled my AV software, turned off my firewall but i still cant upload images.is my isp provider blocking me from uploading pic?? help