VNC crashes under XP Pro

[Webmaster Castricum105]

Hi All,

I'm experiencing VNC crashes on XP.

I'm using VNC 3.3.7 registered as a system service on a Windows XP Pro 
machine.
This machine is set up with multiple accounts (all administrator 
privileges) with "fast user switching" turned off.
On boot the machine logs on to one of these accounts using TweakUI.
After 1 minute my screen saver kicks in leaving the machine password 
protected ("On resume, password protect" setting at my screen saver).

Now when I try connect to the machine RealVNC regularly crashes and I 
cannot connect to that machine again. When I use RealVNC without the "On 
resume, password protect" option I experience no problems at all, so 
obviously it has something to do with the password protection of my 
screensaver. Disabling the "Use Welcome Screen" at "User Accounts" 
doesn't help as well.

anyone any idea how to overcome this problem. I really need the machine 
to be password protected and have no screen attached (it is used as a 
server).

thanks,
Nicol`s