OE vs Thunderbird on Windows 2003 Server

Hi,

I need to install some email client on terminal services ( W2K3 ).
Mail server is Cyrus IMAP (Linux box).

Mailboxes are very big ( >2GB single file ), and I need to know if OE has the same problem on Windows 2003 Server as on Windows XP, that it hangs system with BSOD, when dbx file is too big.

And if wouldn’t be better if I installed Thunderbird on Windows 2003 Server.

I don’t want to spend money on MS Outlook.

Thanks

p.s. W2K3 with terminal services is also a DC so it needs to be very stable.