[bug]"Random" error

[leong124]

I've been found this problem for times that I can't tolerate more.
When I tried to build tracks like railway,monorail,and especially for tunnels(both for railway and road) by dragging with the mouse,
My Windows will tell me that the game has an error and have to quit.
I don't know why but it is more likely to occur when I drag to build a long track, and today,when I was playing Simutrans again,the same problem occured when I was saving!
It is very disturbing and I hope developers could help me to fix this problem.I'm using the 102.2.1 r2928 version and below are the specs of my PC:
CPU:AMD Sempron 2500+ 1.4GHz OC 1.6GHz
MB: ASUS K8V-MX
RAM: 512MB(Unknown brand)
Display: Forsa FX5200 128MB 300/500MHz
HDD: WD 40GB
Sound: Onboard sound output
OS:Windows XP SP3
Game resolution:Windows mode 1024x768

Sorry for my bad English but I hope you can understand.

[z9999+]

Try nightly version. http://nightly.simutrans-germany.com/

This bug and AI depot problem are very critical.
Many players are desiring new stable version.