possible way to solve
After two days trying connect my 2 PCs (w7 64 and WXP SP2, both system on Mac bootcamp) unexpectetdly a problem was sold on WXP. My i9000 from Hungary (factory neverlocked), so i download a Kies from samsung.hu - this desigion i was told in my local samsung service (in Russia) Also it was old version (1/5/1) it synchro well, not as newest 1/5/4 wich i tried before.
It is difficult to say If may desigion is universal. In addition I have done: 1) reject to autoupdate kies 1.5.1 to 1.5.4 - the system ask about updating when to start 2) as was written higher some post I unmount and erase external SD and unmount (not erase) internal SD, then reboot phone before connection to usb
I understand, that post is about W7 64 - but I think the general way to desigion is using old kies. I recomend to combinate different ways to solve synchro problem not depending on operation system. Shame on Samsung for such trouble making syncronization for 600 USD gadget.
I hope the post will be usefull