Checksum on Mailenable fails on Download

[DanielB1234]

It's not the first time that I tried to test plesk 10.0.x.x.x., but all the time something happens... !!

now came up this error :
FileFetcher: get file (PANEL-WIN_10.0.1/dist-msi-Microsoft-2003-i386/)/mailenable.exe
File downloading PANEL-WIN_10.0.1/dist-msi-Microsoft-2003-i386/mailenable.exe: MD5 missmatch: 6562da624023c3dab492e579178b0395
Error: The MD5 checksum of the C:\6ad8fe91ce048554694fd8035230a9a7\parallels\PANEL-WIN_10.0.1\dist-msi-Microsoft-2003-i386\mailenable.exe file does not match the value specified in the configuration file.
Not all packages were installed.
Please resolve this issue and try installing the packages again.
If you cannot resolve the issue on your own, contact product technical support for assistance.

Why ?

Can anybody, give me an idea to solve this issue.

Thanks