Linux vs. Windows results

["Sandro Poppi" <spoppi () gmx net>]

Hi,

I ran into an interesting (weird?) behaviour of os detection of nmap v5.00:

Sometimes (not always) I get inaccurate results when I scan from a linux box while doing the same scan from a Windows 
XP box the os detection is perfect.

E.G. scanning a Windows 2003 Server SP2 (nmap -O -sSU -T4 <target>):

Linux: No exact OS matches
Windows: OS Details: Microsoft Windows Server 2003 SP1 or SP2

Scanner:
Linux: Fedora 11 with Fedora nmap rpm
Windows XP SP3: nmap.exe from nmap.org, WinPCap 4.0.2

nmap-os-db is identical on both systems

I haven't found anything similiar in the archive so I wonder if it's only me having this issue or if anyone else also 
has seen it, and ideally what the solution would be.

Thank you for your time,
Sandro
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