Engien immediately closes

Hi,
I have installed the beta 8.2. Then I put my key file in the engines folder. In WED, it also shows me my username and password correctly. However, no matter which exampel I try to run, the engine immediately closes again (before even opening the 3d window...all I can see is the small startup window).
What can be wrong?

Mind posting the content of your acklog.txt file so that we can give you more precise tips?

will do as soon as i am home again.

Ok, here is the log file.


Log of A8 Engine 8.20.0 run at Tue May 10 22:38:14 2011
andreas on Windows NT/2000/XP version 6.1 Build 7601
Options crowd.c -diag -tr -debug
App: D:\GStudio8\SED.exe in D:\GStudio8\samples\

MM mixer opened
DSOUND device opened
DI interface opened
Start Window opened(c) Conitec - www.3dgamestudio.com
A8 Engine - Trial Edition V8.20.0 - Apr 17 2011
Development version
30 days left

Mouse found
Lautsprecher (SoundMAX Integrated Digital HD Audio) opened
NVIDIA GeForce GTX 260 pure T&L device 1ff9 detected
D3D device NVIDIA GeForce GTX 260 1ff9 selected.
ackphysx.dll opened
ackwii.dll opened
samples.wrs opened
Compiling CROWD.C - [Esc] to abort....
PATH D:\GStudio8\code\
PATH D:\GStudio8\templates\images\.............. 0.306 sec
Running CROWD.C.
2 objects
Close level,DLL,objects
Free input,funcs,panels,defs,syns,views,strings,vars..ok
Free sounds,bmaps,fonts,hash,defs1,script..ok
Close dx,multimedia,D3D,engine,nexus..ok
A8 Engine - Trial Edition V8.20.0 - Apr 17 2011
(c) Conitec - www.3dgamestudio.com
30 days left
Close window at 0.391


As said, I have a valid key8c.dta in my gamestudio folder. In MED\WED it does show my username and password. SO everything seems to be correct, still I can't run any program. It starts and immediately clsoes again.

Any help?