It is possible that your PC could be infected. The file name OPTGRAPH.DLL is used by both safe and unsafe programs.
You should urgently check your PC to make sure it is not infected. The free version of Webroot Cloud AntiVirus Beta will scan your PC in less than two minutes and check for millions of spyware and malware infections including OPTGRAPH.DLL. Don't put your confidential data, or your identity at risk, check your PC now with Webroot Cloud AntiVirus Beta.

The unsafe files using this name are associated with the malware group:
OPTGRAPH.DLL has been the subject of the following behavior:
The filename OPTGRAPH.DLL was first seen on Mar 16 2008 in the following geographical regions of the Webroot community:
OPTGRAPH.DLL can also use the following file names:
Files using the name OPTGRAPH.DLL have been seen with the following file size:
The filename OPTGRAPH.DLL refers to many versions of a dynamic link library.
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