Video error

[vkrivoshiev]

I use KVM switch to switch between 2 pc.
If i start Tower8 on PC with 2 monitor everythink is ok, when switch to other ot pc(wihout monitor) is ok, but when i return to first pc Tower give me a message error - ASSERT(SUCCEDED(hr) VideoDC9GDI.cpp: 141 and program is crash. There is no such problem with other programs.
The same thing happens in armcad in an autocad environment, autocad itself without armcad doesn't crash like that.