Microsoft Security Essentials - Not recognizing scans

I use Microsoft Security Essentials. I use the scanning tool regularly. But now it's not detecting that I've run both quick and full system scans and repeatedly shows an exclamation mark on the icon in the lower right of my screen and when I open the program up, it thinks that I haven't completed a scan.

A few days ago during a full scan (didn't pick it up in a quick scan), it did come up with http://www.microsoft.com/security/p...oit:Java/CVE-2010-0840.DR&threatid=2147646182 I've since deleted the old Java and verified I have the new.

I've tried re-installing MSE and the problem still persists. I scanned last night, a full scan, it's still not detecting it.

Should I just go back to Avast?
Thanks

 

Do you run CCleaner?
If so, read this thread http://answers.microsoft.com/en-us/...ing-scan/184db1be-8575-4a91-b065-f0aa6a3fb04e

 

That fixed it! Thank you very much.