Home Network Large File Transfer Lockup

Just installed Win7 64 Home Pro from XP two days ago.
The last remaining issue I need to solve is a drag and drop file transfer to my other home network computer (HNC).

So far I've been able to d&d files from the HNC via Acronis WD in it's explorer mode without any issues, some sized in the multi Gb range. I've been also able to d&d small files directly to the HNC successfully.

When I try to d&d a large file, specifically my NVIDIA drivers sized at 123Mb the Win7 computer freezes immediately. The cursor is stuck and the computer is absolutely locked, the only thing that works to recover it is the power off button.
When I come back I don't get any indication of anything going wrong and if I look on the HNC drive the file has been transferred successfully!

I haven't tried copying files to the HNC via Acronis WD yet so I don't know if it will be able to write to it.

The HNC computer has not caused any issues in the past with XP, it's running Ubuntu Linux.

Thanks for anyone's input.

As a suggestion, test what happens when you attempt the drag 'n' drop operation in [safe mode + net].

The most likely problem causes are a bad anti-virus filter driver, or a NIC driver which needs updating.

H2SO4 said:

As a suggestion, test what happens when you attempt the drag 'n' drop operation in [safe mode + net].

The most likely problem causes are a bad anti-virus filter driver, or a NIC driver which needs updating.

Sorry about the slow response, had a bunch of work to do.

Yes, you were correct about the NIC driver. The first update I got from Microsoft fixed the problem! In the patch list was one for my onboard net card. :)

Thanks!

I registered an account just to say that updating the NIC drivers worked for me as well. I was getting 16.5kb/s transfer rates at first, now I'm at ~200MB/sec. I was skeptical since this was an issue between 2 PCs, but ironically they both had the same motherboard/NIC card (Realtek PCIe GBE Family Controller). I updated both of them.

Thanks very much for your advice!