Error upon Opening : Coreldraw x7 has stopped working

Wen I Open Corel Draw x7 On Windows 7 It Get Error Telling 

Error upon closing: Coreldraw x7 has stopped working

Before it was working fine but sudeenly its not working ! I tryied Re Installing It twice ! bUt Not Solved plz help me..

Problem signature:
Problem Event Name: APPCRASH
Application Name: CorelDRW.exe
Application Version: 17.0.0.491
Application Timestamp: 5323cfe6
Fault Module Name: chtbrkg.dll
Fault Module Version: 1.0.0.2
Fault Module Timestamp: 57f3b808
Exception Code: c0000005
Exception Offset: 0001beb1
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 16393
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

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