Hi, I guess this is because of the compilation error when building the binary. I uninstalled 2.11.50, and delet the bin folder which still contains a .dll file. Then the reinstalled 2.11.49 can work well. Perhaps the problem is in that .dll file, because someone said he also can't run 2.11.49. I always delete programs completely, sometimes even dlete items in the registry. So, for XP users, you/we have to wait for the next version. Haipeng
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