Specifications: Amd Athlon Xp 2800+,Asus A7N8X-DELUXE,1 Gb RAM Corsair Value,Radeon 9600pro. Win XP:SP1 Fo2 UK version with the official patch and using the official mapper. I don't think that the specifications of my computer have anything to do with this bug since I tried it on my laptop and on the pc of a friend with the same results,but i included them anyway,just in case. My problem is that the mapper crashes when I try to move a specific lvl that i am working right now.In the same map file,I have two lvls.Lvl 1 is finished while lvl 2 is under construction.I've run out of space while mapping,so I try to shift Level 2 a few tiles north but the mapper crashes instantly. Note:The problem uppears only in lvl2.If I try to shift lvl 1 or ANY other level in any other map file,it works just fine. Anyone has an idea what's causing this or how to fix it? If you need me to post any more information,just ask.