Can't run main.exe

Can't run main.exe

1. I run MuServer => Everything goes smooth. All services say that they have connected...
2. I change ip in main.exe with hexeditor.
3. I try to open main.exe and after opening it shuts down(closes). It doesnot even get to the loading part.

I have had this problem with past 2 MuServers(clients)
* MuEngine
* MFS Season 5

Operating system: Windows7 32bits.

This problem only on your computer.Too much season 5 main's ( %80 ) will be black screen and windows again.

I have same problem on my pc too. I think this problem with ATI graphic driver.

My solution :

Change mu resoulition and Bit's %50 will be fixed otherwise try more main without any dll ( empty Main ) will be work a good.

P.S = sorry for my noob english