Windows 7: 7600 (RTM) won't connect to 7232 via Network

So when I try to connect to my friend's shared folders, it won't let me like it did in other builds. I am now running 7600x64 and it's giving me some problems. Screenshots are attached.

Also, I can SEE the homegroup, but when i type in the CORRECT password it says it is wrong. I am running on the same WORKGROUP.

yes, me and andythecurefan are having this issue while trying to connect to each other.
screenshots attached for illustration:





I have not seen this dialogue before.
We've had networking troubles before while juggling the relentless updates, but this is new.

I'm not concerned much with this since i'll probably upgrade to RTM as well,
but just to let it be known that this problem cropped up.

maybe MSFT doesn't want the RTM to interact with the lesser versions.
RTM needs to get off its high horse, lol.

Update

This has been fixed by us both running the so called "RTM", now debunked and just build 7600. Apparently I couldn't connect to the old Homegroup anymore either. So I guess there just isn't any file sharing between RTM and non-RTM builds.