Root help


can anyone help with my problem. i had a problem connecting phone to pc so i followed some instructions to factory reset the phone i connected my phone to pc and it worked so i solved the problem i had BUT i then went to install all my apps from android market and guess what all i get is starting download nothing else i have also tried again to attach my phone to p.c and low and behold it's now not connecting again i have never been able to use p.c studio with my phone only kies i have noticed tho that where the normal 3g icon appears i now have a H