I just ran the Superantispyware Tool to check my computer for problems. It shows igfxdev.dll %systems as an UNKNOWN ITEM that has not been verified. I read that IGFXDEV.DLL is needed for start up and is digitally signed by MICROSOFT WINDOWS HARDWARE COMPATIBILITY PUBLISHER. However, the one that Superantispyware found is digitally signed by KARL SABO. (?) It does say the KARL SABO digital certificate as verified. It shows the file creation to be August 30, 2014 at 2:29 PM. My computer is much older than that. When I scanned for IGFXDEV.DLL in MY COMPUTER C Drive, it showed 10 app ext. ... six referred to DRIVERSTORE\FILE REPOSITORY, two to DRV\Graphics\Intel, and two just said System32. Am I supposed to have all this or could the DLL verified by Karl Sabo be malware? Many thanks in advance!