Time Capsule - Windows 7 can't see disks

Question

Just purchased a Time Capsule 1 TB and installed it. I have 2 PC's connecting to it. One is a Windows Desktop running Windows 7 RC (final). It sees the Time Capsule, printer, and disks. That's cool.
However, I have an HP laptop that is connecting to the Time Capsule. It sees the printer just fine, but when I try to access the disk it gives me the error message:
"Unknown user, inncorrect password, or login is disabled. Please retype the login information or contact..."
I have tried virtually every option (wired or wireless access, etc.). Currently disk access is setup to use Accounts, with passwords. But I've tried it the other ways. It's making me crazy!
Anybody got any ideas?

Answer 1

Tesserax,
Thanks for the quick response, but no luck. I followed your steps. There were a couple of differences for me:
1. I have two "Network security: minimum session..." sections. Presumably because I have a Wireless and a wired connection or have at one time.
2. I wanted to make sure the 7th step was in the same area "User Rights Assignment" and not some other "policy" area that I missed.
o From the Win7 desktop, click Start
o Search for: security
o Click 'Local Security Policy'
o Goto Local Policies > Security Options
o Under Policy, double-click 'Network security: LAN Manager authentication level'
o Change level to: Send LM & NTLM responses
o Under Policy, double-click 'Network security: Minimum session security for NTLM SSP based (including RPC) clients'
o De-select 'Require 128-bit encryption'
o Click OK