I have the exact same problem. I tried all that was suggested but found no malware.
Please help! I use an Asus K52De Windows 7 Premium.
Here's the log report:
Malwarebytes' Anti-Malware 1.51.2.1300
www.malwarebytes.orgDatabase version: 8034
Windows 6.1.7601 Service Pack 1
Internet Explorer 9.0.8112.16421
28-Oct-11 4:34:29 PM
mbam-log-2011-10-28 (16-34-29).txt
Scan type: Full scan (C:\|D:\|E:\|G:\|)
Objects scanned: 333379
Time elapsed: 45 minute(s), 8 second(s)
Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0
Memory Processes Infected:
(No malicious items detected)
Memory Modules Infected:
(No malicious items detected)
Registry Keys Infected:
(No malicious items detected)
Registry Values Infected:
(No malicious items detected)
Registry Data Items Infected:
(No malicious items detected)
Folders Infected:
(No malicious items detected)
Files Infected:
(No malicious items detected)