problem with crystal report viewer! plz help me

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C#

reporting

Hello. I am using crystal report viewer. But when I run the program, monitor screen as if rendered or to be refreshed constantly flick. Also font of Reports in Crystal Report viewer To be cluttered, and also puts together its readability is lost. I advise you ask me.
It is noteworthy that I use visual studio 2008 for programming and also use c# languages.I also ask about the source code to fix this problem if c # language give you my place.
I cannot Write English well , therefore I send you a notice attach image of the report in Crystal report viewer until . please help me!
my report show in crystal report view Before font of Reports in Crystal Report viewer To be cluttered
link1[^]

my report show in crystal report view suddenly cluttered :
link2[^]
suddenly all reports in a manner similar be upset.

suddenly all the reports will show puts together and this process continues until the program once I would open and close.
I'm using this Vendor of Crystal Reports in my other programs too . But such is not just about this program problem to occur.
Even though after the display refresh button to click the Crystal Report viewer still the problem exists.

Thank you.