hi friends i have geovision card GV-600v2 and it was working fine until my brother scrowit up then i have install new windows xp pro and load software V6.0 and it got back to normal working good but only problem i was facing is when i restart PC some times i have to reinstall driver then it will work fine until next restart i have GV-600V2 card with 4 bnc input and expansion card for 4 more that little cable connect on card for expansion i install more camera an connect into 5 cam , 6 cam then i can not see 5 th and 6th camera on screen but when i go to system config i can see that camera i thought some thing wrong with expansion card i open computer take card out and put it back the way it was then i turn computer on and Guss what driver reinstall when i went put gv CD on computer detect that card as GV-250 i try every thing uninstall software reboot PC uninstall hardware even i change pci slot from one to other i need help warry bad can some pone help me