Here's the latest log. I'm surprised it found something. I haven't been experiencing any symptoms for over 24 hours:
Malwarebytes' Anti-Malware 1.50.1.1100
www.malwarebytes.orgDatabase version: 5925
Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702
3/1/2011 10:23:30 PM
mbam-log-2011-03-01 (22-23-30).txt
Scan type: Quick scan
Objects scanned: 177088
Time elapsed: 10 minute(s), 41 second(s)
Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 1
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:
HKEY_CURRENT_USER\SOFTWARE\mdnkso81qq2 (Trojan.FakeAlert) -> Quarantined and deleted successfully.
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)